Question

If the circum-radius of a right-angled triangle is $20cm$, then the length of the hypotenuse will be ___ (in cm)

Answer 1

For a right angled triangle, hypotenuse of the triangle is the diameter of the circumcircle.

Given, Radius of the circumcircle $=20cm$

So, Diameter $=2\times$ radius $=2\times 20=40=$ Hypotenuse.

Thus, Hypotenuse $=40cm$