Question

What is the value of x in this triangle?

Round only your final answer to the nearest hundredth.

Answer 1

Answer: 20.40

Explanation:

a^2+b^2=c^2

b is unknown so it's

b=
`\sqrt (c^2-a^2)`

b=sqr(21^2-5^2)=20.39

rounded to the nearest hundred is 20.40