Question

3. Exterior angle, ZACD of a triangle is 100° and
ZA and ZB are in the ratio 3 : 2. Find all the
angles of the triangle.​

Answer 1

Answer:

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

Hence, In this case ∠A and ∠B

So,

∠A+∠B=140

∘

as ∠A=∠B

or,2∠A=140

∘

∠A=∠B=70

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