The Surface area of the whole cone is 4408.56 cm²
The Surface area of the tips that is removed is 376.8 cm²
The Surface area of the megaphone(hollow) is 2712.96 cm²
<h3 /><h3>What is surface area?</h3>
Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape.
Therefore,
Surface area of the whole cone = πr² + πrl
Therefore,
Surface area of the whole cone = πr(r + l)
where
- r = radius = 18 cm
- l = edge length = 60 cm
Surface area of the whole cone = 3.14 × 18(18 + 60) = 4408.56 cm²
Surface area of the tips that is removed = 3.14 × 4 (18 + 12) = 376.8 cm²
Surface area of the megaphone(hollow) = πrl
Surface area of the megaphone(hollow) = 3.14 × 18 × (60 - 12) = 2712.96 cm²
learn more on surface area here: brainly.com/question/7410402
Answer:
9 children and 0 adults, 6 children and 2 adults, 3 children and 4 adults, or 6 adults and 0 children went to the park
Step-by-step explanation:
1/3 x (2p+9)
That what I got
Answer:
<u>If You divide 2 integers with different signs it will be negative, but to make it positive you divide the absolute values. So, only if one integer is negative and one is positive will the answer be negative</u>
Step-by-step explanation:
EXAMPLE: 8÷ (-4)=-2 but when using absolute value |8|÷ |4|=2
HOPE THIS HELPS!!!
Answer:
he use 9.28 gasoline
Step-by-step explanation: