Find the value of x in each triangle
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Answer:
a) In ∆ABC,
Angle A + Angle B + Angle C = 180°
100° + 40° + 2x° = 180°
140° + 2x° = 180°
2x° = 180° - 140°
2x° = 40°
x° = 40 ÷ 2
x° = 20°
So,
The value of Angle C = 2x°
= 2 × 20°
= 40°
b) I can't understand the question
Hint : Use Sum property of ∆
c) I can't understand the question
Hint : Use Sum property of ∆
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