Question

3. One of the exterior angle of a triangle ABC measures 150°. If oneof the interior opposite angle is 75°. Find the other interioropposite angle. What type of triangle is this?​

Answer 1

Step-by-step explanation:

exterior angle = sum of interior opposite angle

assume a & b are the interopposite angles

therefore a= 75 degree & b we have to find

150 = 75+b

b= 75 degree

hence the two angles are equal

therefore it is an isoceles triangle