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Chapter 7 A Tale of Three Intersecting Lines - Part 5

If an angle of a triangle is equal to the sum of the other two angles, the triangle is:

Type: MCQ • Marks: 1
If an angle of a triangle is equal to the sum of the other two angles, the triangle is:
Options
A. Acute-angled
B. Equilateral
C. Right-angled
D. Obtuse-angled
Explanation
If A = B + C, then A + (B + C) = 2A = 180° => A = 90°. Hence, it is a right-angled triangle.
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Class 7th Ganita Prakash 1

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