NCERT Class 7 Mathematics Solutions: Chapter 6 –The Triangle and its Properties Exercise 6.5 Part 1

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Pythagoras theorem are given

Pythagoras Theorem

Pythagoras theorem are given

1. is a triangle, right angled at . If and , find .

Answer:

A Triangle PQR

A triangle PQR with two side are given

Given,

Consider,

By applying Pythagoras theorem in ,

[ ]

2. is a triangle, right angled at . If , find .

Answer:

Triangle ABC

Triangle ABC, AB=25 cm, AC=7 cm, BC=x cm

Given,

Consider,

In triangle

[By Pythagoras theorem]

[ ]

So, the length of is .

.