CBSE Class 7 Maths Angle Sum Property of A Triangle
 what is iscosless triangle
 What is altitude??

find the angle y in the following figure
 of exterior ZA, 10. Calculate the angles of a triangle ABC having 34B = 4ZC and the interior ZA =
 caculate angles of triangle abc having 3 times angle b= 4 times angle c and interior angle a =4/7 of its exterior angle
 The two angles of a triangle are equal and third measures 70degree . Find the measures of each of the unknown angles
 how to proof that the sum of the angles in a triangle is 180^0

Find the value of x and y in the following figure
 Triangle ABC is isosceles with AB=BC. If angle B is twice the measure of angle A, then find all the angles of the triangle
 What is an exterior angle of a triangle? Illustrate using diagram.