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docker41 [41]
3 years ago
12

Which is the total surface area of this cone?

Mathematics
1 answer:
disa [49]3 years ago
3 0

Answer:

  A.  219.80 square centimeters

Step-by-step explanation:

The total surface area is given by ...

  A = πr(r+s)

where r is the radius and s is the slant height. Filling in the given numbers, you get ...

  A = 3.14·(5 cm)·(5 cm +9 cm) = 219.80 cm²

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I believe the answer is A.
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3 years ago
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Joan needs to estimate the size of her bedroom so that she can buy enough paint to cover the walls. Two of the walls measure 2.8
labwork [276]

The total area of the room is 37.6376 and the no. of cans required to paint the wall is 3 cans.

The measurement of two of the walls is 2.86 metres and 3.16 metre

Area of the two walls = 2(length x breadth)

Area = 2(2.86 x 3.16) = 18.0752 m²

The measurement of the other two walls is 2.86 metres and 3.42 metres

Area of the two walls = 2(length × breadth)

Area = 2(2.86 × 3.42) = 19.5624 m²

Total area = 18.0752 + 19.5624 = 37.6376 m²

If one can of paint can cover 15 m², the no. of cans required to paint the bedroom will be

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3 0
1 year ago
Consider the triangle.
BigorU [14]

Answer:

It's the second answer down : Angle B, A and C

Step-by-step explanation:

7 0
3 years ago
What is the median for 76,84,93,67,82.87,76
sineoko [7]
1) order the numbers from smallest to largest
67, 76, 76, 82, 84, 87, 93

2) the middle number is the median as there are an odd number which makes it easier.

The median is 82.
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3 years ago
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4) The yellow submarine was at sea level when the passengers boarded. The journey began with a descent of 40 meters. After exami
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a) Write an expression to describe the journey of the yellow submarine.

-> ((0 - 40) + 30) - 25

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[] The descend 40 meters = -40

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[] The started at 0 (0), descended 40 (-40), rose 30 (-10), and then sove 25 (-35) to see the octopus

[] Another way to think of this is to simplify our previous expression completely

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

4 0
2 years ago
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