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Maths CBSE Live product
Class 7 (2026-27)
A tale of three intersecting lines
Properties of triangles
4.
Calculate the interior angle
Question:
3
m.
In the figure, if the exterior angle \(\angle C =\)
86
\(°\) and \(∠A = 36°\), then determine the value of \(∠B\).
Answer:
The property used to determine the value of \(\angle B\) is:
The sum of the measure of three angles of a triangle is 180°
An exterior angle of a triangle is equal to the sum of its opposite interior angles
The value of
\(\angle B\)
is
86
50
100
\(°\).
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