Question

In the following drawing, find b if a = 4.5 and c = 10.8. Round your answer to two decimal places . help ! (image below)

Answer 1

In the following drawing, find b if a = 4.5 and c = 10.8. Round your answer to two decimal places

Answer 2

Pythagorean theorem

Answer 3

\[a ^{2}+b ^{2} = c ^{2}\]

Answer 4

Plug in the numbers. square them, and then last step is to take the square root of the final answer.

Answer 5

Why is the value of arcsin(sin(5pi/4)) -pi/4 and not 5pi/4? Thank you. :)