Question

In ∆ABC, angleA=angleB + angleC. Find A what kind of a triangle is it? If it further given that angle B=2angleC, find angleB and angleC​

Answer 1

Answer:

angle a is 90 degree

Step-by-step explanation:

angle b is 30 degree

angle c is 60 degree

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Answer 2

Answer:

Angle A = 72°

Angle B = 72°

Angle C = 36°

Step-by-step explanation:

Angle A = Angle B

Angle B = 2 x Angle C

Angle Sum Property of Triangle:-

Angle A + Angle B + Angle C = 180°

Angle B + Angle B + Angle C = 180° (Because Angle A = Angle B is given)

2 x Angle C + 2 x Angle C + Angle C = 180° (Because Angle B = 2 times Angle C is given)

5 x Angle C = 180°

Angle C = 180 ÷ 5 = 36°

Angle B = 2 x Angle C = 2 x 36° = 72°

Angle A = Angle B = 72°

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