Question

If angle DAC = 30* find angle B and C of triangle ABC

Answer 1

Answer:

Angle B= 50 degree

Angle C= 60 degree

Answer 2

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<ADB = 90°

and <BAD = 40°

→ <ABD = [180 - (90 + 40)]°

→ <ABD = 180° - 130°

→ <ABD = 50° or <B = 50°

And since ∆ABC is a (most probably a) isosceles triangle, <B = <C = 50°

∴ B & C = 50°

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