Chapter 7 A Tale of Three Intersecting Lines - Part 1

The exterior angle of a triangle is 111°. What is the adjacent interior angle on the straight line?

Type: MCQ • Marks: 1
The exterior angle of a triangle is 111°. What is the adjacent interior angle on the straight line?
Options
A. 69°
B. 27°
C. 111°
D. 84°
Explanation
They form a linear pair: 180° − 111° = 69°.
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Class 7th Ganita Prakash 1

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