Question

The exterior angle ACD of ABC is 110 and A and B are in the ratio 7:4.find the angles of ABC.​

Answer 1

Answer:

Step-by-step explanation:

Let angle A and B be 7x and 4x respectively.

Ext. Angle = sum of two opp. interior angle

So 7x+4x=110

x=10

So the angles of triangle are

70°,40° and 70°