3 years ago

The figure shows an equilateral triangle with its sides as indicated. find the length of each side of the triangle .

Mathematics

1 answer:

kotegsom [21]3 years ago

4 0

Answer:

Step-by-step explanation:

All three sides are equal

2x-7 = x+y-9 = y+5

Using the last two

x+y-9 = y+5

Subtract y from each side

x+y-9-y = y+5-y

x-9 = 5

Add 9 to each side

x -9+9 = 5+9

x=14

We know the side length is

2x-7

2(14) -7

28-7

The side length is 21

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