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Sloan [31]
3 years ago
7

Find the area of a circle with a circumference of 34.6 feet

Mathematics
1 answer:
andrew11 [14]3 years ago
4 0

Answer:

Area of the circle = 95.33feet^2

Step-by-step explanation:

Circumference of the circle=34.6 feet

Circumference of a circle= 2\pi r

           34.6=2\pi r\\\\

As, \pi =\frac{22}{7}=3.14

        34.6=2*3.14*r\\\\34.6=6.28*r\\\\34.6/6.28=r\\\\r=5.51feet

Area of the circle=\pi r^2

            =3.14*5.51*5.51\\\\=3.14*30.36\\\\=95.33feet^2

The area of the circle is 95.33feet^2

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The width of a kitchen is 4.2 metres.
Svetradugi [14.3K]

Given:

The width of a kitchen is 4.2 metres.

Kitchen cupboard widths are 60 cm.

To find:

The number of kitchen cupboard that will fit in 4.2 metres.

Solution:

Let x be the number of kitchen cupboard that will fit in 4.2 metres.

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Width of x cupboards = 60x cm

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Width of a kitchen = 4.2 metres

                              = 4.2×100 cm

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2 years ago
What is the sum of the exterior angles of polygon QRST?
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3 years ago
Simplify the following expressing. Show your work and explain each step. <br><br> 7-(5-3(2+6(2^2)))
Anon25 [30]

Answer:

80

Step-by-step explanation:

7-(5-3(2+6(2^2)))

When a question has multiple signs, the rule of BODMAS is used. That is, Bracket Of Division Multiplication Addition and Subtraction. The question above will therefore be solved in that order.

The first bracket, we have 2^2

That gives 4

Rewriting the question will give

7-(5-3(2+6(4)))

The question in the next bracket will follow

(2+6(4))

In this bracket too, we have the plus sign and the multiplication sign, so the multiplication will first be solved, them addition will follow.

(2+24)

(26)

Rewriting the question again, we have

7-(5-3(26))

And then, we have the last bracket

(5-3(26))

But we have both the Subtraction sign and the Multiplication sign in this bracket also, so the multiplication will first be solved, before the Subtraction.

(5-3(26))

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And lastly we have

7-(-73)

7+73

80

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3 years ago
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