Chapter 7 A Tale of Three Intersecting Lines - Part 1

The exterior angle of a triangle is 100°. What is the adjacent interior angle on the straight line?

Type: MCQ • Marks: 1
The exterior angle of a triangle is 100°. What is the adjacent interior angle on the straight line?
Options
A. 67°
B. 33°
C. 100°
D. 80°
Explanation
They form a linear pair: 180° − 100° = 80°.
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Class 7th Ganita Prakash 1

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