What is the hypotenuse of a right trianlgle if the legs are each 20 inches long? Round to the nearest whole number.
A. 28
B. 29
C. 30
D. 31
Is the answer B?
Thanks
No, but you were close. When solving this, you round to 28 because 28.284271247461900976033774484194 is closer to 28 than 29.
I hope this helps! :)
Oh ok, thank you.
You're welcome. :)
To find the hypotenuse of a right triangle, you can use the Pythagorean theorem. The Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the two legs.
In this case, both legs are 20 inches long. So, we can calculate the hypotenuse as follows:
hypotenuse^2 = leg1^2 + leg2^2
hypotenuse^2 = 20^2 + 20^2
hypotenuse^2 = 400 + 400
hypotenuse^2 = 800
To find the value of the hypotenuse, you need to take the square root of both sides of the equation:
hypotenuse = √800
Calculating the square root of 800, you get approximately 28.28427125.
Rounding to the nearest whole number, the value of the hypotenuse is 28.
Therefore, the correct answer is A. 28.