CBSE · Class 6-12

Back to Triangles

Class 10 · Mathematics (Standard) · Unit 6: Triangles

Pythagoras Theorem and Converse

Lesson 5 of 6

In a right triangle with legs

a, b

and hypotenuse

c

:

c^2 = a^2 + b^2

. Converse: if in a triangle with sides

a, b, c

we have

c^2 = a^2 + b^2

, then the angle opposite

c

is a right angle. Pythagorean triples:

(3,4,5), (5,12,13), (8,15,17), (7,24,25)

.

Areas of Similar Triangles

All lessons in this unit