Answer:

Step-by-step explanation:
we know that
An isosceles triangle has two equal sides and two equal angles
so
The perimeter of triangle is equal to

Eliminate parenthesis

Combine like terms

Answer:
<em><u>1,310.9854</u></em>
Step-by-step explanation:
See the image for Calculation
The answer is (-2,-3) Thank you and please rate if I helped you! Thanks again!