Mathematics

Grade9

Easy

Question

The measure of the angle $∠ B C D i s______.$

145
113
102
78

hint Hint:

If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles.

The correct answer is: 102

Given, angle A = 67° and angle B = 35°
If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles. Here angle BCD is exterior angle and angle A and B are the interior opposite angles .
then, angle BCD = angle A + angle B
angle BCD = 67°+ 35° = 102°
Therefore, measure of angle BCD is 102°.

The measure of the angle $straight m angle A$ is ___________. Remember $angle straight A plus angle straight B plus angle straight C space equals space 180 to the power of ring operator$

MathematicsGrade9

Grade9

Mathematics

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The measure of the angle is ______.

14511310278

If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles.

The correct answer is: 102

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The measure of the angle $∠ B C D i s______.$

145
113
102
78

The measure of the angle $straight m angle A$ is ___________. Remember $angle straight A plus angle straight B plus angle straight C space equals space 180 to the power of ring operator$

The measure of the angle $straight m angle A$ is ___________. Remember $angle straight A plus angle straight B plus angle straight C space equals space 180 to the power of ring operator$

Classify the triangle whose angle measures are 40 $°$ °, 60 $°$ , and 80 $°$ °.

Classify the triangle whose angle measures are 40 $°$ °, 60 $°$ , and 80 $°$ °.

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The measure of the angle $∠ A i s______.$

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