Question

question in comments, help please ? <3

Answer 1

that is incorrect.

Answer 2

there is a formula for a right triangle.
\(\large\color{black}{ a^2+b^2=c^2 }\)
(where c is the hypotenuse of the triangle)

it can be rearranged to be in terms of a single (not-hypotenuse) side.

\(\large\color{black}{ a^2+b^2=c^2 }\)
\(\large\color{black}{ a^2=c^2 -b^2 }\)
\(\large\color{black}{ a=\sqrt{c^2-b^2} }\)

Answer 3

Use the Pythagorean Theorem.

\(a^2 + 36^2 = 85^2\)

Solve for 'a'.

Answer 4

in your case though, it is \(\large\color{black}{ g=\sqrt{h^2-f^2} }\)
plug in everything that you are given.

Answer 5

Just simplify 36^2 and 85^2..subtract 36^2 to both sides, then square it.

Answer 6

\(a = \sqrt{85^2 - 36^2}\)

Answer 7

so it's C ?

Answer 8

yes C is right