Find the volume of the cone.
h= 10 cm
Q
r = 3cm

94.2cm³

Step-by-step explanation:

(see attached for reference)

the volume of a right cone is given as

V = (1/3) π r² h

where,

π = 3.14

r  = given as 3 cm

h = given as 10 cm

hence,

V = (1/3) π r³ h

= (1/3) (3.14) (3²)(10)

= 94.2cm³

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6