Question

# The sum of interior angles of an octagon is __________.

Hint:

### Polygon is a two- dimensional closed figure which is made up of three or more line segments. Each polygon has its own properties based on the number of sides. Here, we have to find the sum of all the angles of the given polygon.

## The correct answer is:

### In the question it is given that we have to find the sum of all the angles of an octagon.

So, the sum of all the angles of an octagon is .

Therefore, the correct option is b, i.e., .

Octagon is an eight sided polygon whose sum of all angles can be determined using the formula: , where n is the number of sides of the polygon.

### Related Questions to study

### For what values of is ABCD a parallelogram?

Parallelogram is a four-sided polygon whose opposite sides are parallel and equal to each other and the opposite angles are equal to each other. The sum of all angles of a parallelogram is and sum of two consecutive angles is . The diagonals of a parallelogram bisect each other and the angle into two equal halves. Here, we have to use these properties of a parallelogram and solve the given question.

### For what values of is ABCD a parallelogram?

Parallelogram is a four-sided polygon whose opposite sides are parallel and equal to each other and the opposite angles are equal to each other. The sum of all angles of a parallelogram is and sum of two consecutive angles is . The diagonals of a parallelogram bisect each other and the angle into two equal halves. Here, we have to use these properties of a parallelogram and solve the given question.

Parallelogram is a four-sided polygon whose opposite sides are parallel and equal to each other and the opposite angles are equal to each other. The sum of all angles of a parallelogram is and sum of two consecutive angles is . The diagonals of a parallelogram bisect each other and the angle into two equal halves. Here, we have to use these properties of a parallelogram and solve the given question.

### The measure of side AB is ______.

### The measure of side AB is ______.

### If AEDC is a rectangle, then the length of AE is ____.

### If AEDC is a rectangle, then the length of AE is ____.

### What is the measure of ?

properties of rectangle

opposite sides are parallel and equal to each other.

Each interior angle is equal to 90 degrees.

The sum of all the interior angles is equal to 360 degrees.

diagonals bisect each other.

Both the diagonals have the same length.

### What is the measure of ?

properties of rectangle

opposite sides are parallel and equal to each other.

Each interior angle is equal to 90 degrees.

The sum of all the interior angles is equal to 360 degrees.

diagonals bisect each other.

Both the diagonals have the same length.