Two cylinders are similar. The heights of the cylinders are 15 cm and 12 cm. If the surface area of the smaller cylinder is 487 cm square. find the surface area of the larger cylinder.

Step-by-step explanation:

Two cylinders are similar. The heights of the cylinders are 15 cm and 12 cm. If the surface area of the smaller cylinder is 487 cm square. find the surface area of the larger cylinder.

Height of the smaller cylinder = 12cm

Area of the smaller cylinder = x

Height is the bigger cylinder = 15cm

Area of the bigger cylinder = 487cm²

We can find the radius of the bigger cylinder

Radius of the bigger cylinder = 4.07 cm

Hence: we form our proportion to find radius of Smaller cylinder

12/15 = x/4.07

Cross Multiply

15x = 12 × 4.07

x = 12 × 4.07/15

x = 3.256 cm

which expression represents the approximate length of bc?

step-by-step explanation:

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2