Answer:
is that a T or F
Step-by-step explanation:
Answer:
-4 *-4 *-4
= 16*-4
= ANWSER
-9*-9
=81
Step-by-step explanation:
The formula for area of a circle = PI x r^2
since we know area, we can put that in the formula and solve for r ( which is the radius) diameter is radius x 2
826 = 3.14 x r^2
divide both sides by 3.14:
r^2 = 826 / 3.14
r^2 = 263.06
r = square root (263.06)
r = 16.22 cm
diameter = 16.22 * 2 = 32.44 cm
