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yulyashka [42]
3 years ago
6

A patio in the shape of a semicircle has a diameter of 21 ft. What is the approximate area of the patio, rounded to the nearest

square foot? Use 3.14 to approximate pi star times. ft2
Mathematics
2 answers:
galben [10]3 years ago
6 0
Diameter = 21 ft
Radius = 21/2 ft

Area of a semi circle = πr^2 /2

= 3.14 x( 21/2 )^2/2
= 346.185/2
= 173.0925 ft^2

The answer is 173 ft^2
lana [24]3 years ago
4 0
We know, Area of a Semi-circle = πr² / 2
Here, r = 21/2 = 10.5

So, A = 3.14 * (10.5)² / 2
A = 346.185 / 2
A = 173.09 Ft²

In short, Your Answer would be 173 Feet²

Hope this helps!
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3 years ago
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Answer:

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Step-by-step explanation:

4 0
3 years ago
On Tuesday Conrad had 3 times as many sales as on Monday. On Wednesday, he had 9 times as many sales as on Monday. Over the thre
Vlad1618 [11]

Answer:

Conrad had 56 sales on Monday , 168 sales on Tuesday and 504 sales on Wednesday.

Step-by-step explanation:

Let x be the no. of sales on Monday

We are given that On Tuesday Conrad had 3 times as many sales as on Monday.

So, Conrad had sales on Tuesday = 3x

We are also given that On Wednesday, he had 9 times as many sales as on Monday.

So, Conrad had sales on Wednesday = 9x

Over the three days, he had a total of 728 sales

So, x+3x+9x=728

13x=728

x=\frac{728}{13}

x=56

Conrad had sales on Tuesday = 3x =3(56)=168

Conrad had sales on Wednesday = 9x=9(56)=504

Hence Conrad had 56 sales on Monday , 168 sales on Tuesday and 504 sales on Wednesday.

7 0
3 years ago
Draw two different shapes with a perimeter of 16 units. What is the area of each shape?
Nadusha1986 [10]

<u>Shape #1:  A square.</u> 
Every side is  4  units long. 
The perimeter is  16  units.
The area is  <em>16  </em>square units.

<u>Shape #2:  A rectangle.</u>
The length is  7.9  units.
The width is  0.1  unit.
The perimeter is  16  units.
The area is  <em>0.79</em>  of a square unit.

<u>Shape #3:  A circle.</u>
The diameter is  (16/π)  units.  (about  5.093  units)
The perimeter (circumference) is 16 units.
The area is  (64/π)  square units.          (about  <em>20.37</em>  square units)


8 0
3 years ago
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soldier1979 [14.2K]
The last one I think
3 0
3 years ago
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