A right cylinder has a radiose of 3 and a heighth of 12. What is the surface area?

282.6

Step-by-step explanation:

Surface area of a cylinder

= 2pi rh + 2pi r^2

Given radius = 3

Height h = 12

Pi = 3.14

Surface area = 2 x 3.14 x 3 x 12 + 2 x 3.14 x (3)^2

2 x 3.14 x 3 x12

+

2 x 3.14 x 3 x 3

Simplify each sides

226.08 + 56.52

282.6

40 minutes

step-by-step explanation:

add the time and multiply by 2

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation: