Pythagoras' Theorem

What type of triangles can we apply the Pythagorean theorem to?

• Equilateral

• Isosceles

• Equiangular

• Right

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The longest side of a triangle is called the _____.

• hypotenuse

• hippotenuss

• henry

• longsidenuse

A right triangle has 2 shorter sides of 3 cm and 4 cm. How long is the hypotenuse?

• 4 cm

• 5 cm

• 7 cm

• 25 cm

Answer explanation

3^2 + 4^2 = 5^2

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The Pythagorean Theorem is named after a Greek man called _______ who lived about 570 to 495 BCE.

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Find the missing side.

• 9

• 6.40

• 8.23

• 5.63

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Find the missing side.

• 8.26

• 9.11

• 8.5

• 6.93

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Find the missing side.

• 7.47

• 8.52

• 7.93

• 2.22

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Is this triangle a right angled triangle?

• YES

• NO

• There is not enough information to work it out.

• Only on Tuesdays when the moon is full.

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Is this a right triangle?

• YES

• NO

• There is not enough information given.

• If your Mum says it is.

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My TV screen is 55 inches wide and 30 inches tall. What is its diagonal measurement, to the nearest inch?

• 61 inches

• 62 inches

• 63 inches

• 64 inches

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