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HELP ME PLEASE!!! I DON'T UNDERSTAND!

HELP ME PLEASE!!! I DON'T UNDERSTAND!-example-1
User Tom Smith
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2 Answers

10 votes

Answer:

I believe that the answer is 12 but find someone who knows for sure.

User Ross
by
8.6k points
4 votes

Answer: 12

Explanation:

this is a right angled triangle so you use the pythagorean theory

which is a^2 + b^2 = c^2

you have c and b already. c is the hypotenuse.

a^2 + 16^2 = 20^2

a^2 + 256 = 400

a^2 = 400 - 256

a^2 = 144

then you square root 144 and get..

a = 12

User Aferber
by
8.3k points

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