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3 years ago

Find the length of the missing side of the triangle. The lengths of the triangles are 5m and 14m. The answer choices are:

2 answers:

7 0

Two sides of a triangle are: 5, 14.
By triangle inequality the sum of each pair of sides must be > the third side.
x + 5 > 14
Subtract 5 from both sides.
x > 9

x + 14 > 5
Subtract 14 from both sides.
x > -9

5 + 14 > x
19 > x

x has to be greater than 9 but less than 19.
Letter A

torisob [31]3 years ago

4 0

I guess you mean 5m and 14m are the lengths of 2 sides of the triangle.

If the length of any side is equal or greater than the sum of the other 2 sides then you can;t make a triangle.

So for example 19 cannot the answer because 19 = 5 + 14 . No triangle can be formed with sides that measure.
and 38 is greater than 14 + 5 so its cant be C.

The answer is A

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