Step-by-step explanation: (9+11) divided by 10 or (5+4+1) which is 2.
Then 2 x 20=40.
So the Answer to this equation is 40.
Answer:
(9 + 11) /(5 + 4 + 1)(9 + 11)
20/10(20)
20/200
1/10
The surface area of a cylinder is the sum of the areas of the two bases and the area of the lateral surface. If the height of the cylinder is doubled, the area of the lateral surface is doubled, but the areas of the bases remain the same.
Step-by-step explanation:
