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raketka [301]
3 years ago
9

Find the curved surface area of 4 pillars if the height of pillars is 7.5m and the radius of the base is 2.5m

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
8 0

Answer:

471.24 m²

Step-by-step explanation:

Formula for curved surface area is;

A = 2πrh

We are given dimensions of a single pillar as;

Height; h = 7.5 m

Radius of base; r = 2.5 m

Thus;

A = 2π × 2.5 × 7.5

A = 117.81 m²

Since there are 4 pillars.

Total curved surface area is;

A_t = 4 × 117.81

A_t = 471.24 m²

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Leokris [45]

Answer:

B? I believe? sorry if it's wrong

4 0
3 years ago
The city of Yorkton, Saskatchewan, has an area of 24.0 km^2. If this city were a perfect square, what would it’s exact perimeter
Elis [28]

Answer:

8\sqrt{6}  inches

Step-by-step explanation:

Let l represent the length of the square

The area of a square = l^2

That means,

l^2 = 24 km^2

Take the square root of both sides

l = \sqrt{24}

l = \sqrt{4*6

l = \sqrt{4} *\sqrt{6}

l = 2\sqrt{6}

Now lets find the perimeter

Perimeter of a square, P = 4l

P = 4* 2\sqrt{6}

P = 8\sqrt{6} inches

3 0
3 years ago
Consider the rectangular prism below.
Radda [10]

Answer:

Option D

Step-by-step explanation:

Formula for the surface area of rectangular prism = 2(lb + bh + hl)

Here, l = Length of the prism

b = Width  

h = Height

If l = 25 cm, b = 12 cm and h = 20 cm

Surface area of the rectangular prism = 2(25×12 + 12×20 + 20×25) cm²

Therefore, Option D will be the correct option.

4 0
3 years ago
How many 1/6s are in 1&1/6
Amanda [17]

Answer:

7/6

It's 7/6 because 6/6 make up a whole which is the 1 in 1 1/6

then there is that left over 1/6 to make it 7/6

5 0
3 years ago
Read 2 more answers
Someone please help me!
RideAnS [48]
For this case what you should do is evaluate values of x in the function and verify that they meet the result of f (x) shown in the graph.
 The answer is
 f (x) = - 2lxl +1
 notice that
 f (1) = - 2l1l + 1 = -1
 f (-1) = - 2l-1l + 1 = -1
 Both comply with the value of f (x) shown in the graph
 answer
 f (x) = - 2lxl +1
4 0
3 years ago
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