Identify all of the following that are prime numbers. A. 2 B. 11 C. 27 D. 31 E. 42 F. 59 G. 63 H. 72 I. 81 J. 97
1 answer:
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Answer:
b = 36
Step-by-step explanation:
Assuming this is a right triangle with hypotenuse = c and legs a and b
Then using Pythagoras' identity.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
a² + b² = c², and substituting values
15² + b² = 39², that is
225 + b² = 1521 ( subtract 225 from both sides )
b² = 1296 ( take the square root of both sides )
b = = 36