A pole is made to lean against a wall. The base of the pole is placed 7 feet

away from the wall. The top of the pole reaches 21 feet up the wall. How long is the pole?

22.14

Step-by-step explanation:

Using the Pythagorean Theorem:

a^2 + b^2 = c^2

21^2 + 7^2 = c^2

441 + 49 = c^2

490 = c^2 (square root both sides so c^2 becomes c)

c = 22.13594363 (round to hundredths)

c = 22.14

the answer is D) √245