Find the missing lengths of the sides.

ANSWER

The correct answer is A.

EXPLANATION

The given triangle is a right isosceles triangle because one angle is 90° and the base angles will be 45° each.

This means that:

Using, the Pythagorean Theorem, we have

We simplify to get:

Take positive square root,

This implies that

Therefore b is also equal to 9

The correct answer is A.

option a

Step-by-step explanation:

You can use these identities:

Then, to find "a" you know that:

Substituting:

Now you must solve for "a":

To find  "b", you know that:

Substituting:

Now you must solve for "b":

i don't see any steps below, sweetheart