Question

Can someone help me with number 3

Answer 1

Answer is c= 41

Step by step

Since this is a right triangle we can use Pythagorean Theorem a^2 + b^2 = c^2

We know a= 9cm and b= 40cm
We are looking for c or the hypotenuse

9^2 + 40^2 = c^2

81 + 1600 = c^2

1681 = c^2

√1681 = √c^2

41 = c