If length of one side of cube is 20 cm, then volume of cube must a: 4000 cm 3 b: 6000 cm 3 c: 800 cm 3 d: 8000 cm 3

D

the volume (V ) of a cube = s³ ( where s is the length of the side )

here s = 20, hence

V = 20³ = 8000 cm³

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value