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slamgirl [31]
3 years ago
13

How can you find the area of a semi-circle

Mathematics
2 answers:
quester [9]3 years ago
8 0

In the case of a circle, the formula for area, A, is A = pi * r^2, where r is the circle's radius. Since we know that a semicircle is half of a circle, we can simply divide that equation by two to calculate the area of a semicircle. So, the formula for the area of a semicircle is A = pi * r^2/2

Alina [70]3 years ago
7 0

Answer:

Area of semi-circle is πr²/2.

Step-by-step explanation:

Area of circle is πr² where r is radius of the circle.

Semi-circle is defined as the half circle.

So, the area of the semi-circle is half of the area of circle.

Area of semi-circle=area of circle/2

So , Area of semi-circle =πr²/2 which is the answer.


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Rewrite each fraction with a denominator of 10.<br> a<br> 7<br> - IN<br> 2<br> 3 <br> IN <br> 5
PolarNik [594]

Answer:

7/2 = 35/10

3/5 = 6/10

Step-by-step explanation:

To get a common denominator of 10, simply multiply the current denominator by any number to equal 10. The first fraction has a denominator of 2. If we divide 10 by 2, we get the answer 5. This means 2 can be multiplied by 5 to get a denominator of 10. However, what we do to the denominator we must also do to the numerator (multiply by 5).

7/2

7 × 5 / 2 × 5

35/10

3/5

3 × 2 / 5 × 2

6/10

brainliest pls

6 0
2 years ago
Find the solution of the system of equations<br> shown on the graph.
o-na [289]

Answer:

Answer:(0,3)Step-by-step explanation:The solution in a set of graphs is where they intersect. In this graph, they intersect at (0,3)

4 0
2 years ago
Can someone please help me out with this? Honestly have no idea how this table works
soldi70 [24.7K]
I could help you with math
5 0
2 years ago
Can someone please help me?
Pavlova-9 [17]

Answer:

A.1/12

Step-by-step explanation:

Probability of the card being yellow is 1/4

And probability of the card being even is 1/3

And if you are asked to find a yellow even card we multiply those two numbers to get 1/12

3 0
3 years ago
Read 2 more answers
How many lengths of wire, each 3 3/4 inches. long can be cut from a 25-ft roll?
lianna [129]

Answer:

80 pieces of wire.

Step-by-step explanation:

It may not come out evenly. If there is a remainder, it won't matter. Just throw it away and go with the integer answer.

Change 3 3/4 to a decimal

3.75

Change the 25 foot roll to inches.

25 feet * 12 inches / foot  = 300 inches.

Now how many pieces of wire do we get.

1 piece of wire/3.75 inches = x pieces of wire / 300 inches

3.75 * x = 300

3.75 * x / 3.75 = 300 / 3.75

x = 80

6 0
2 years ago
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