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Who is he?

The theorem of Pythagoras

A

is about the sides of a right-angled triangle

B

is used to calculate an unknown angle

C

is invented by Pete Agoras

D

is more than 2500 years old but still going strong

Sketch triangle KLM with angle K = 90 degrees and

KL = 15 and LM = 20

Take a pic and send it in here!

KL = 15 and LM = 20

Take a pic and send it in here!

timer

0:45

We want to calculate BD.

What to calculate first?

What to calculate first?