A few days ago
david b

help with triangles?

give a right triangle with b=4 and c=11 find a approximated to 3 decimal places

Top 5 Answers
A few days ago
Shev

Favorite Answer

Assuming that side a is the hypotenuse (opposite the right, or 90 degree angle) then the answer is the square root of the square of 4 plus the square of 11.

4 squared = 16

11 squared = 121

16 + 121 = 137

square root of 137 = 11.705

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A few days ago
cgflann
The pythagorean theorem states that the sum of the squares of the legs of a right triangle equals the square of the hypotenuse. In other words, you can write this as a^2+b^2=c^2

For this triangle, you know the hypotenuse and one leg, so you can rewrite the equation like this:

a^2=c^2-b^2

121-16=a^2

105=a^2

the (positive) square root of 105 is approximately equal to 10.247

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A few days ago
John F
a^2 + b^2 = c^2, Buy a calculator and do the math.
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A few days ago
Anonymous
i hate math
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A few days ago
superintellejunt
It is exactly 2.471
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