Question

Please help, Thanks

Answer 1

Answer:

F. 75 units

Step-by-step explanation:

Use the pythagorean theorem: $a^2+b^2=c^2$, which a and b are the lengths of the shorter sides, and c is the length of the hypotenuse, the longest side. So in this problem we have $21^2+72^2=c^2$. This can be simplified to 5625=$c^2$. Taking the square root on both sides we get c is 75.

Answer 2

Answer:

F) 75

Step-by-step explanation:

Use the Pythagorean theorem: a^2 + b^2 = c^2

a = 21

b = 72

c = length of BC

21^2 + 72^2 = c^2

5625 = c^2

c = 75