Question

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

(1 point)
A)441
B)22.5
C)64
D)19.4

Answer 1

Pythagoras : 21^2 - 8^2 =?

Answer 2

the answer it do in 2 min plzz

Answer 3

\[a^2+b^2=c^2\]\[8^2+b^2=21^2\]

Answer 4

x^2= 21^2 -8^2
x^2= 144-64
x^2=377
x= the square root of 377
x= 19.4

Answer 5

come on, put a LITTLE work into it :/

Answer 6

thank you faneaustin

Answer 7

you're welcome