## ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 11 Triangles and its Properties Ex 11.3

Question 1.

Find the value of x in each of the following figures:

Solution:

Question 2.

Find the value of x in each of the following figures:

Solution:

Question 3.

Find the values of x and y in each of the following figures:

Solution:

Question 4.

Calculate the size of each lettered angle in the following figures:

Solution:

Question 5.

If the angles of a triangle are in the ratio 1 : 2 : 1, find all the angles of the triangle. Classify the triangle in two different ways.

Solution:

Question 6.

In an isosceles triangle, a base angle is four times its vertical angle. Find all the angles of the triangle.

Solution: