If that is -2+1+4+13 I think it should be 16
Answer:
268 units³
Step-by-step explanation:
V = 4/3 (pi)r³
V = 4/3 (3.14) (4³)
V = 4/3 (3.14) (64)
V = 4/3 (200.96)
V = 268
The surface area of a cylinder that the radius tripled and it height is brought down to half is 3890.46 inches²
<h3 /><h3>How to find the surface area of a cylinder?</h3>
Surface area of a cylinder = 2πr(r + h)
Therefore,
radius is tripled = 3(7) = 21 inches
height is shrunk half its size = 17 / 2 = 8.5 inches
Therefore,
surface area = 2 × 3.14 × 21 (21 + 8.5)
surface area = 131.88(29.5)
surface area = 3890.46 inches²
learn more on cylinder here: brainly.com/question/16551354
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Answer:
36 square feet
Step-by-step explanation:
To get the answer you need to find the area of the triangle and subtract area of the rectangle.
7*12/2 = 42
42 - 3*2 = 36
B becuase you can insert 5 in the rule and get 45 as an output
