3 years ago

PLEASE HELP!!! I NEED ANSWER IMMEDIATELY!!! What is the length of side AC of the triangle?

Mathematics

1 answer:

arsen [322]3 years ago

7 0

Answer:

$AC=25\ units$

Step-by-step explanation:

we know that

An isosceles triangle has two equal sides and two equal interior angles

In this problem

The triangle ABC is an isosceles triangle, because

m∠A=m∠C

therefore

AB=BC

substitute the given values

$5x+5=7x-1$

solve for x

$7x-5x=5+1$

$2x=6$

$x=3$

<em>Find the length of side AC</em>

$AC=6x+7$

substitute the value of x

$AC=6(3)+7$

$AC=25\ units$

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