Mathematics
Grade9
Easy

Question

Is the figure a polygon? Is it convex or concave?

  1. Not a polygon, convex
  2. Polygon, convex
  3. Not a polygon
  4. Polygon, concave

hintHint:

General synopsis of Polygon.

The correct answers are: Polygon, convex, Not a polygon


    In mathematics, a polygon is a closed two-dimensional figure made up of line segments.
    * Poly means many gon means angle. Hence, polygon is a closed figure that is made of many angles.
    * In General there are 4 types of polygons. They are:
    Regular Polygon
    Irregular Polygon
    Convex Polygon
    Concave polygon
    * Convex polygon :
    This is a type of polygon with all the interior angles strictly less than 180 degrees. The    vertex of a convex polygon always points outwards from the center of the shape.
    >>>Given That:
                               
    >>>There are two 90 degree angle. Hence, the total sum of angles obviously greater than 180 degrees.
    >>>Hence, the given figure is Convex Polygon.
                            

    >>>The Convex polygon is called as the polygon that has sum of interior angles greater than 180 degrees.
    >>>Therefore, the given figure is a convex polygon.

    Related Questions to study

    Grade9
    Mathematics

    What is the general form of naming a polygon?

    One can find this with a small trick. The student should learn to break the word. For example, Hexagon: Hexa+Gon. Now, as we know that hexa is six. Similarly, if a polygon has ‘n’ sides, then the polygon would be named as n-gon.

    What is the general form of naming a polygon?

    MathematicsGrade9

    One can find this with a small trick. The student should learn to break the word. For example, Hexagon: Hexa+Gon. Now, as we know that hexa is six. Similarly, if a polygon has ‘n’ sides, then the polygon would be named as n-gon.

    Grade9
    Mathematics

    Identify whether the angle is acute, obtuse, right or straight

    Step 1:
    Given angle is equal to 90.
    Step 2:
    So, the given angle is a right angle.
    >>Hence, the angle of measurement is right angle.

    Identify whether the angle is acute, obtuse, right or straight

    MathematicsGrade9

    Step 1:
    Given angle is equal to 90.
    Step 2:
    So, the given angle is a right angle.
    >>Hence, the angle of measurement is right angle.

    Grade9
    Mathematics

    Give another name for angle H

    Another name for angle H is angle L H G

    Give another name for angle H

    MathematicsGrade9

    Another name for angle H is angle L H G

    parallel
    Grade9
    Mathematics

    A polygon with six sides is called a _____.

    >>>Polygon with sides meant that it has six angles totally.
    >>>Hence, we can say that the Hexagon is the term used to interpret a polygon that has six sides.

    A polygon with six sides is called a _____.

    MathematicsGrade9

    >>>Polygon with sides meant that it has six angles totally.
    >>>Hence, we can say that the Hexagon is the term used to interpret a polygon that has six sides.

    Grade9
    Mathematics

    Identify the non-polygon from the following.

    Non polygon is the figure that cannot be represented using angles and sides.
    >>>Hence, the non-polygon is Circle.

    Identify the non-polygon from the following.

    MathematicsGrade9

    Non polygon is the figure that cannot be represented using angles and sides.
    >>>Hence, the non-polygon is Circle.

    Grade9
    Mathematics

    Measure the following angle using a protractor.

    Step 1:
    We line up one ray with 0°. We then read the angle measurement where the other ray crosses the protractor.
    Step 2:
    Reading from the protractor, the given angle measures 110°.
    >>>Hence, we can say that the angle of measurement is 110 degrees.

    Measure the following angle using a protractor.

    MathematicsGrade9

    Step 1:
    We line up one ray with 0°. We then read the angle measurement where the other ray crosses the protractor.
    Step 2:
    Reading from the protractor, the given angle measures 110°.
    >>>Hence, we can say that the angle of measurement is 110 degrees.

    parallel
    Grade9
    Mathematics

    Measure the following angle using a protractor.

    Step 1:
    We line up one ray with 0°. We then read the angle measurement where the other ray crosses the protractor.
    Step 2:
    Reading from the protractor, the given angle measures 60°.
    >>>Therefore, the angle of measurement is 60 degrees.

    Measure the following angle using a protractor.

    MathematicsGrade9

    Step 1:
    We line up one ray with 0°. We then read the angle measurement where the other ray crosses the protractor.
    Step 2:
    Reading from the protractor, the given angle measures 60°.
    >>>Therefore, the angle of measurement is 60 degrees.

    Grade9
    Mathematics

    Classify each angle as acute, obtuse, right or straight

    Step 1:
    Given angle is more than 90 and less than 180
    Step 2:
    So, the given angle is an obtuse angle
    >>>Hence, the angle of measurement is an obtuse angle.

    Classify each angle as acute, obtuse, right or straight

    MathematicsGrade9

    Step 1:
    Given angle is more than 90 and less than 180
    Step 2:
    So, the given angle is an obtuse angle
    >>>Hence, the angle of measurement is an obtuse angle.

    Grade9
    Mathematics

    Identify whether the angle is acute, obtuse, right or straight

    Step 1:
    Given angle is more than 90 and less than 180
    Step 2:
    So, the given angle is an obtuse angle
    >>>Therefore, the angle measured is an obtuse angle.

    Identify whether the angle is acute, obtuse, right or straight

    MathematicsGrade9

    Step 1:
    Given angle is more than 90 and less than 180
    Step 2:
    So, the given angle is an obtuse angle
    >>>Therefore, the angle measured is an obtuse angle.

    parallel
    Grade9
    Mathematics

    Measure the following angle using a protractor.

    Step 1:
    We line up one ray with 0°. We then read the angle measurement where the other ray crosses the protractor.
    Step 2:
    Reading from the protractor, the given angle measures 45°.
    >>>Therefore, the angle of measurement is 45 degrees.

    Measure the following angle using a protractor.

    MathematicsGrade9

    Step 1:
    We line up one ray with 0°. We then read the angle measurement where the other ray crosses the protractor.
    Step 2:
    Reading from the protractor, the given angle measures 45°.
    >>>Therefore, the angle of measurement is 45 degrees.

    Grade9
    Mathematics

    Identify the measure of the missing angle?

    Let the missing angle be x.
    According to Angle Addition Postulate, x + 24 = 180
    x = 180 – 24
    x = 156
    >>>Therefore, the angle of measurement is 156 degrees.

    Identify the measure of the missing angle?

    MathematicsGrade9

    Let the missing angle be x.
    According to Angle Addition Postulate, x + 24 = 180
    x = 180 – 24
    x = 156
    >>>Therefore, the angle of measurement is 156 degrees.

    Grade9
    Mathematics

    Identify the correct statement for the following figure.

    * Equiangular polygon is the polygon that has equal angles and unequal sides.

    Identify the correct statement for the following figure.

    MathematicsGrade9

    * Equiangular polygon is the polygon that has equal angles and unequal sides.

    parallel
    Grade9
    Mathematics

    A regular polygon is,

    * Regular polygon consists of congruent angles and congruent sides.

    A regular polygon is,

    MathematicsGrade9

    * Regular polygon consists of congruent angles and congruent sides.

    Grade9
    Mathematics

    Is the figure a polygon? Is it convex or concave?

    Is the figure a polygon? Is it convex or concave?

    MathematicsGrade9
    Grade9
    Mathematics

    A polygon with a minimum number of sides is ________

    A polygon with a minimum number of sides is ________

    MathematicsGrade9
    parallel

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