The lengths of the legs of a right triangle are 9 cm and 40 cm.

what is the length of the hypotenuse?

a. 39 cm
b. 41 cm
c. 49 cm
d. 65 cm

B

Step-by-step explanation:

Use pythagorean theorem a² + b² = c², where a and b are legs, and c is hypotenuse.

9² + 40² = c²

√(9² + 40²) = c

√(81 + 1600) = c

√1681 = c

41 = c

So length of hypotenuse is 41 cm.

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation: