Question

What is the side length b in the triangle below?


A. 8
B. 16
C. 2.8
D. 23.3

Answer 1

a^2+b^2=c^2

Answer 2

i dont now how i got it but it is 16

Answer 3

Ya same here.

Answer 4

Use the pythagorean theorem! ^.^
a^2 + b^2 = c^2
You are given the hypotenuse, which is c. And you're given one of the legs, which can be either b or a. So solve for the other variable. :)
a^2 + 12^2 = 20^2
a^2 + 144 = 400
a^2 = 256
a = sq.rt. of 256

Answer 5

i already said that...

Answer 6

\[a^2 + b^2 = c^2, ~~~~12^2 + b^2 = 20^2\]
Now, you need to solve the equation for b \[144 + b^2 = 400\] Now subtract 144 from both sides. \[b^2 = 256\] Now take the square root \[\sqrt{b^2} = \sqrt{256}\]\[b = 16\]

Answer 7

Thank you all so much!