Asked by Deborah

The length of the hypotenuse of a right triangle is 30 m. The length of one leg is 20 cm. Find the length of the other leg. Round your answer to the nearest tenth
I know how to do hypotenuse but this doesn't seem to work out...help please
Answered by Ms. Sue
a^2 + b^2 = c^2

20^2 + b^2 = 30^2

400 + b^2 = 900

b^2 = 500

b = 22.36 = 22.4 cm

Answered by Deborah
So that doesn't really work then does it Ms. Sue - isn't it supposed to be a even number?
Answered by Ms. Sue
I don't think it's supposed to be an even or whole number. Your directions say to round to the nearest tenth.
Answered by Deborah
Thank you Ms. Sue - I understand now... :)
Answered by Ms. Sue
You're welcome, Deborah. :-)
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