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Rudiy27
3 years ago
14

A cylinder has a lateral area of 120π square metres. It has a height of 7 metres. Find the radius, round to the nearest tenth.

Mathematics
1 answer:
lys-0071 [83]3 years ago
7 0
The radius for this cylinder is 2.73m
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ILL GIVE BRAINELST
murzikaleks [220]

Answer:

A = 12 ft

Step-by-step explanation:

Perimeter ( of SQUARE) B = 64

  then each side = 64/4 = 16

AREA of SQUARE C = 400

    side X side = 400

        then side = sqrt 400

Now use Pyhtagorean Theorem to find leg of right triangle that is

   side A  Side B  hypotenuse Side C

A^2 + 16^2 = (sqrt 400)^2

A^2 = 400 - 256

A^2 = 144       then A = 12  Ft

6 0
1 year ago
Help me pls I don’t know how to do this
rusak2 [61]

Answer:

radius=6.68cm

Step-by-step explanation:

Formula to find radius:

r=\frac{C}{2\pi }

r=42/2\pi

r=42/2(3.14)

r=6.68cm

<em>hope this helps......</em>

6 0
3 years ago
The volume of the prism shown is 72. in3
Vesna [10]

Answer:

  24 in³

Step-by-step explanation:

The volume of a prism is given by the formula ...

  V = Bh

where B is the area of the base, and h is the height.

The volume of a pyramid is given by the formula ...

  V = (1/3)Bh

where B and h have the same definitions.

For a pyramid with the same B and h as a prism, the volume is 1/3 that of the prism:

  (1/3) × (72 in³) = 24 in³ . . . . volume of the pyramid

8 0
3 years ago
I need help with this please ASAP!!!
Gelneren [198K]

Answer:

11.3

Step-by-step explanation:

i used the theorem of Pythagoras

5 0
3 years ago
Read 2 more answers
Look at the picture, pls help!!
tatyana61 [14]

Answer:

f(-1) = 12

f(1) - g(1) = 8

g(x) = 4  when x = 2

f(x) = g(x) when x = 3

Step-by-step explanation:

Read the graph.

Find the x - values on the x - axis and identify what y level the line is at.

4 0
3 years ago
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