Help...please?? Thanks guys
2 answers:
Answer:
x=20
Step-by-step explanation:
The Pythagorean theorem is
a^2 +b^2 = c^2
where a and b are the legs and c is the hypotenuse.
The legs are x and 15 and the hypotenuse is 25
x^2 + 15^2 = 25^2
x^2 +225 = 625
Subtract 225 from each side
x^2 +225-225 = 625-225
x^2 = 400
Take the square root of each side
sqrt(x^2) = sqrt(400)
x = 20
With right triangles, a^2+b^2=c^2
c is the hypotenuse, or longest side.
In this case:
c=25
b=15
So, square these numbers:
15 squared is 225
25 squared is 625
625-225=400
The square root of 400 is 20
So:
x=20
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