In ∆ ABC` ~=` ∆ DEF ,and `angle A =45° ,angle E = 87° ` ,then find `angle c​`

In Delta ABC , angle A + angle B= 65^@ , angle B + angle C = 140^@ then find angle B .

In ∆ABC , if ∠A = ∠C , and exterior angle ABX = 140° , then find the angles of the triangle

If in a Delta ABC, angle A = 45^(@) , angle B = 75^(@), then

In triangle ABC , angle C is the greatest angle , then

In the given figure, angle A = 60^(@) and angle ABC =80^(@) , then find angle BPC .

In a Delta ABC, angle C = 3 angle B = 2 (angle A + angle B) , then angle B = ?

In two triangles ABC an DEF, angle A=angleD . The sum of the angles A and B is equal to the sum of the angles D and E. If BC=6 cm and EF=8cm , find the ratio of the areas of the triangles, ABC and DEF.