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Artemon [7]
3 years ago
9

PLEASE HELP!! find the value of x. attached image.

Mathematics
2 answers:
White raven [17]3 years ago
6 0

Answer:

x = 4

Step-by-step explanation:

    The angle markings at the bottom of the triangle mean they are congruent. Since they are the only two congruent to each other, that means this triangle is an isosceles triangle.

    In an isosceles triangle, not only are the bottom angles congruent, their opposing sides are congruent as well. In this instance, that means 9x - 8 = 28. Knowing that we can solve for x.

9x-8=28\\\\9x-8+8=28+8\\\\9x=36\\\\\frac{9x}{9}=\frac{36}{9}\\\\x=4

zzz [600]3 years ago
3 0

Answer:

<h2>x = 4</h2>

Step-by-step explanation:

9x - 8 = 28 ( converse of isosceles triangle )

<em>(If two angles of a triangle are congruent , then the sides opposite to these angles are congruent.)</em>

<em>9x - 8 = 28 \\ 9x - 8 = 28 + 8 \\ 9x = 36 \\  \frac{9x}{9}  =  \frac{36}{9}  \\ x = 4 \\</em>

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