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

Question

I know how to do hypotenuse but this doesn't seem to work out...help please

Answer 1

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

Answer 2

So that doesn't really work then does it Ms. Sue - isn't it supposed to be a even number?

Answer 3

I don't think it's supposed to be an even or whole number. Your directions say to round to the nearest tenth.

Answer 4

Thank you Ms. Sue - I understand now... :)

Answer 5

You're welcome, Deborah. :-)