Answer:
there would be <u>8</u><u> </u><u>sides</u> if there are 20 diagonals
False because $1 =$1 not $3
f(3) = 9
Step-by-step explanation:
f(x) = x^2
f(3) means "When x is 3" So, we substitute x with 3.
f(3) = 3^2
f(3) = 3 x 3 = 9
10
c²=b²+a²=100
so
c=10
jjthj