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3 years ago

What is the surface area of the regular pyramid given below?

Mathematics

2 answers:

Sophie [7]3 years ago

8 0

To find the surface area of any shape, you have to find the area of each side on the shape and then add them all up together:
Base: 8*8 = 64
Height(the triangle part) : 8*9 = 72
72/2 = 36 (Because equation to find area of a triangle is b*h/2)
So there are 4 of those triangle sides so you would do: 36+36+36+36 = 144

Then you add both sides together (base and height) : 64 + 144 = 208

VARVARA [1.3K]3 years ago

5 0

Each trianglar side has an area: (1/2)*8*9=36
the base is a square with an area of 8*8=64
so the total surface area is 36+36+36+36+64=208

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Graph the inequality;y>-5x+3

Evgesh-ka [11]

Start your dot on 3 on the y axis. Move is downwards on the y axis by 5 everytime you move over once on the x axis. Shade all the stuff above the line since it says y is greater than -5x+3

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3 years ago

20x3/5=<br> A. 15<br> B. 14<br> C. 13<br> D. 12

MrRa [10]

20 x 3/5

60/5 = 12

D. 12

7 0

3 years ago

You are given that a wheel has a radius of 2 feet and a spin rate of 10 revolutions per minute. Describe how you would determine

igomit [66]

Answer:

2.09.ft/min

Step-by-step explanation:

There is a formula for the linear velocity using rpm:

V = (2π)/60 * r * rpm

V = (2π)/60 * 2ft * 10 = 2.09ft/min

4 0

3 years ago

Read 2 more answers

A community center has an L-shaped swimming pool that is 10 feet deep. What is the volume of the pool?

olasank [31]

The total volume of the pool is 1040 cubic ft. The correct answer is option B.

The complete question is given below:-

The community centre has an L-shaped swimming pool that is 10 feet deep. What is the volume of the pool

1200

1040

640

880

<h3>What is volume?</h3>

Volume is defined as the space covered by any solid body in the three-dimensional plane.

We know that the total volume of the pool is the sum of the volume of two rectangular prisms.

One is a rectangular prism with dimensions 20ft.×10ft.×4ft.

and the other rectangular prism has dimensions: 6ft.×4ft.×10ft.

Hence, the volume of a first rectangular prism is:

20×10×4=800 cubic ft.

The volume of a second rectangular prism is:

6×4×10=240 cubic ft.

Hence, the total volume of the pool is:

800+240=1040 cubic ft.

Therefore the total volume of the pool is 1040 cubic ft. The correct answer is option B.

To know more about volume follow

brainly.com/question/1972490

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6 0

1 year ago

Elmer had climed most of the way up a rock wall when he slipped and fell down 2/9 of the wall. He regained his footing and climb

KatRina [158]

Answer:

1 = m - 2/9 + 7/10

Step-by-step explanation:

We have to, a wall represents unity, therefore to climb a wall, it would then be 1/1 of that wall.

They tell us that the majority has risen, they do not tell us how much, therefore, we will assume that the majority with a value m.

So, when it fell, it lost 2/9 of the wall but then resumed 7/10, that is:

- (2/9) + (7/10) = -20 + 63/90 = 43/90

That is, it had an advance of 43/90 of the wall, we know that the wall is 1/1, therefore:

p = m + 43/90

m = 1/1 - 43/90 = 90-43 / 90

m = 47/90

It means that most of the wall is 47/90

The function would be

1 = m - 2/9 + 7/10

3 0

3 years ago