A ramp leads up to a building. The top of the ramp is 5 feet above the ground, and the bottom is 15 feet from the building as shown.

What is the length of the ramp? Round your answer to the nearest tenth of a foot.

A.
16.0 ft

B.
15.8 ft

C.
20.0 ft

D.
14.1 ft

http://static.k12.com/calms_media/media/1299500_1300000/1299630/1/625f2846b346752c5cc1be6a174a2651e5d0a264/144252.jpg

Question

A ramp leads up to a building. The top of the ramp is 5 feet above the ground, and the bottom is 15 feet from the building as shown.
 
What is the length of the ramp? Round your answer to the nearest tenth of a foot.
  

 
 A.
16.0 ft
 
 B.
15.8 ft
 
 C.
20.0 ft
 
 D.
14.1 ft


http://static.k12.com/calms_media/media/1299500_1300000/1299630/1/625f2846b346752c5cc1be6a174a2651e5d0a264/144252.jpg

anonymous · Answer

use the equation A^2 + B^2 = C^2
in your case:
A= 5
B= 15
C= the number your solving for.

plug in your values
(5)^2 + (15)^2 =C^2
simplify
25+225=C^2
250= C^2
take the square root of both sides
(square root) 250= C^2 (square root)
C= 15.8113
round it to 15.8 which is B for you
Hope this helps

anonymous · Answer

Thank you! This helped so much! :)

anonymous · Answer

your welcome :) and good luck!