Answer:
Explanation:
isosceles triangle, two congruent sides and two congruent angles, we have the value of the congruent sides and we solve it for x with an equation
11 = x + 4
11 - 4 = x
7 = x
check
11 = 7 + 4
11 = 11
the answer is good
7
isosceles triangle has two congruent sides.
since one side has a measure of 11, then the other must measure 11 too.
11-4= 7
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