Answer:

Step-by-step explanation:

You plug 13 into where the r is and then solve, using a calculator
Oh please first if the rectangle was compete, it's area would be 8.
The area of the missing triangle is
=2.
8-2=6<u> </u>
<u>And there you go! Your answer is 6.</u>
Answer:
180
Step-by-step explanation:
I think so but not sure.
The lateral area of a cone is 147ft².
The total surface area of the cylinder is 867ft².
The total surface area is 1014ft²
<h3>What is the lateral surface area of a cone?</h3>
The lateral area of a cone is defined as the area covered by the curved surface of the cone.
Lateral area of a cone = πr x √(r² + h²)
Where:
- r = radius = 12/2 = 6ft
- h = height = 5ft
- π = 3.14
3.14 x 6 x √(36 + 25) = 147ft²
<h3>What is the total surface area of the figure ?</h3>
Total surface area of the cylinder : πr(r + 2h),
(3.14 x 6) x (6 + 40) = 867ft²
Total surface area = 867 + 147= 1014ft²
To learn more about lateral surface area, please check: brainly.com/question/27847638
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