Pythagoras Worksheet
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1
2Pythagoras’ 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.”
2
2
2
a
+ b
= c
9
So, to find the unknown side of a right-angled triangle
2
2
2
2
2
2
We know a
+ b
= c
, so 5
+ b
= 9
2
25 + b
= 81
2
b
= 56
b = 7.5 (1dp)
Find the unknown side of these triangles yourself:
2
2
___
+ b
= ___
2
___ + b
= ___
2
b
= ___
b = ___
1.
___ + ___ = ___
___ + ___ = ___
___ = ___
___ = ___
2.
3.
4.
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