Free pythagorean theorem 32Free pythagorean theorem 32
Download the document to the computer for easy use
There are more pages to preview,Read on

Pythagoras’ Worksheet 2
Pythagoras’ Theorem
“For any right-angled triangle, the square of the hypotenuse is equal to the sum of the squares
of the other two sides.”
a2 + b2 = c2
9

So, to find the unknown side of a right-angled triangle
We know a2 + b2 = c2, so 52 + b2 = 92
25 + b2 = 81
b2 = 56
b = 7.5 (1dp)
Find the unknown side of these triangles yourself:
___2 + b2 = ___
___ + b2 = ___
b2 = ___
b = ___
1.

2.

3.

4.

___ + ___ = ___
___ + ___ = ___
___ = ___
___ = ___

5.
___2 + b2 = ___
___ + b2 = ___
b2 = ___
b = ___
6.
7.

8.

9.

10.

___ + ___ = ___
___ + ___ = ___
___ = ___
___ = ___