Question

Find the perimeter of a right triangle whose legs are 20cm and 21 cm​

Answer 1

Answer:

70cm

Step-by-step explanation:

the sides of a right triangle are 20 and 21 cm

by using the Pythagoras theorem

20^2 + 21^2 = square of third side

so third side = √841= 29 cm

so perimeter of the triangle= 20+ 21 + 29= 70 cm