Jharne De and Ranjana Kumar Solutions for Chapter: Properties of Triangles, Exercise 3: EXERCISE 10.2

The length and breadth of a rectangle are $8 \mathrm{cm}$and $6 \mathrm{cm}$ respectively, Find the lengths of the diagonals. (Write answer in $cm$)

The diagonal of a square is $72 \mathrm{cm}$. Find the side of the square. (Write answer in $cm$)

Two poles $8 \mathrm{m}$ and $13 \mathrm{m}$ high are standing $12 \mathrm{m}$ apart. Find the distance between their tops.

Ravi walks $24 \mathrm{km}$ towards east and then $7 \mathrm{km}$ towards north. Find the distance between the starting point and the final position.

How many triangles are there in the pentagon?

Look at the regular pentagon and answer the question.

Name all the triangles.

Look at the regular pentagon and answer the questions.

Measure the angles of each triangle and verify the angle sum property.

Look at the regular pentagon and answer the question.

Measure the sides of the triangles. Compare the sum of the two sides with the third side.