Question

Math help............

Answer 1

Answers:

The value x is x = 15

The three sides of the triangle are

x+10 = 25

2x-5 = 25

3x-15 = 30

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Work Shown:

The curved angle markers indicate those two angles are the same measure. The sides opposite those angles are the same length. So 2x-5 and x+10 are the same value

2x-5 = x+10

2x-x = 10+5

x = 15

Once we know x, we can find the length of each side

x+10 = 15+10 = 25

2x-5 = 2*15-5 = 30-5 = 25

This also helps confirm we have the right x value (since we got the same value for each expression)

3x-15 = 3*15-15 = 45-15 = 30

This is an isosceles triangle because exactly two sides are the same length.