Test your understanding of how to use the Pythagorean Theorem to find missing sides in right triangles.$$a^2+b^2=c^2$$

Try to answer the questions before checking the answers at the bottom of the page.

Question 1

Find the hypotenuse c when a=3 and b=4.

a) 5
b) 6
c) 7

Question 2

Find the hypotenuse c when a=8 and b=15.

a) 16
b) 17
c) 18

Question 3

In a right triangle, the hypotenuse c=10 and one side is b=8.
Find the side $a$.

a) 4
b) 6
c) 8

Question 4

In a right triangle, the hypotenuse is c=13 and one side is a=12.
Find the side b.

a) 3
b) 4
c) 5

Question 5

Find the hypotenuse c when a=1 and b=2.

a) √3
b) √5
c) √6

Answers

1 → a) 5
2 → b) 17
3 → b) 6
4 → c) 5
5 → b) √5

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Continue Learning

1. Pythagorean Formula
2. Pythagoras Theorem (a² + b² = c²) – Visual Proof 1
3. Pythagoras Theorem (a² + b² = c²) – Visual Proof 2
4. Pythagoras Theorem (Example)

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