Question

Find the missing length. Round to the nearest tenth, if necessary.

(1 point)

441
22.5
64
19.4

Answer 1

If c denotes the length of the hypotenuse and a and b denote the lengths of the other two sides, the Pythagorean theorem can be expressed as the Pythagorean equation is a2 + b2 = c2
Here a = 8, b = x and c = 21
So, 82 + x2 = 212
64 + x2 = 441
Subtract 64 from each side.
x2 = 377
Take square root each side.
x = 19.4
Therefore answer is x = 19.4

Answer 2

thank you so much :)

Answer 3

np:)