Question

10. A square has a 40-cm diagonal. How long is each side of the square? Round your answer to the nearest tenth of a centimeter. (1 point)23.1 cm
20.0 cm
56.6 cm
28.3 cm

Answer 1

We meet again :P
Do you know the Pythagorean theorem?

Answer 2

Remember how I told you that \(a^2 + b^2 = c^2\) in a right triangle? ;)