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MArishka [77]
3 years ago
11

What is the answer for B and how did you get it ?

Mathematics
2 answers:
Orlov [11]3 years ago
7 0
The length of side b is 52 because using the Pythagorean theorem we know that a² + b² = c². When we plug in the known values we would get 1521 + b² = 4225, and when we subtract 1521 from both sides we would get b = 52.
Anna [14]3 years ago
7 0
So for this we will be using the pythagorean theorem, which is a^2+b^2=c^2 . The a and b variable stand for the legs of the triangle and c represents the hypotenuse.

So to start, replace a and c variable with 39 and 65. Your equation should look like this: 39^2+b^2=65^2 . From here we can solve.

Solve the exponents to get 1521+b^2=4225

Subtract 1521 on each side to get b^2=2704

Square root each side and your answer should be b=52km
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