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dimaraw [331]
3 years ago
10

HELP ASAP!! Find the length of the third side. If necessary, write in simplest radical form.

Mathematics
1 answer:
serg [7]3 years ago
4 0
This is using the Pythagorean theorem. 2 sides of the triangle can get you the third side but only when it’s a right triangle.

The formula goes a^2+b^2=c^2, where a and b are legs of the triangle (the non hypotenuse sides), and c is the hypotenuse (the side opposite to the right angle).

In this problem, we have one leg and the hypotenuse.

So a^2+7^2=10^2.
Simplify
a^2+49=100
Subtract both sides by 49
a^2=100-49=51
Square root both sides
a=sqrt(51). 51 is prime so the radical cannot be simplified further.
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