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Alex_Xolod [135]
3 years ago
10

A dartboard has a circumference of 26pi in. Calculate the total are on which the dart may land?

Mathematics
1 answer:
spayn [35]3 years ago
7 0

Answer:

A=530.66\ in^2

Step-by-step explanation:

The circumference of a dartboard, C = 26pi inches

We need to find the area on which the dart may land.

The circumference of a circle is given by :

C = 2πr

Where

r is the radius of the dartboard

r=\dfrac{C}{2\pi}\\\\r=\dfrac{26\pi}{2\pi}\\\\r=13\ in

Now, the area of a circle is given by :

A=\pi r^2\\\\=3.14\times (13)^2\\\\A=530.66\ in^2

so, the required area is 530.66\ in^2.

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Pls help asap for 13 pls and thank u
AysviL [449]
Answer:
The answer is 35.5 square units


Step-by-step explanation:

The shape represents a rectangle, a small triangle removed from it at the upper right corner and a bigger triangle is attached to it at the upper left corner.

We get this formula:
A(shape) = A(rectangle) - A(small triangle) + A(big triangle)
SO LET'S FIND EACH!

A(rectangle)= length x width
length= 8 units
width= 4 units
We get:
A(rectangle) =8x4= 32 square unit

A(small triangle)= (base x height)/2
base= 1 unit
height= 1 unit
We get:
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A(big triangle)= (base x height)/2
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height= 4units
We get:
A(big triangle)= (2x4)/2 = 8/2 = 4 square units

For the final result:
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