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Natalka [10]
3 years ago
10

Math answer plz need help with this plz answer

Mathematics
1 answer:
Gemiola [76]3 years ago
4 0

Answer:

31.4 m , 37.68m , 43,96in , 3.14 ,175.84 ft , 3.14 , 25 ft

Step-by-step explanation:

Circumference of circle(c)= 2πr or πd
a.
Given,
d=10m
Now,
C=πd
3.14*10
31.4 m
b.
Given,
r=6
Now,
C=2πr
2*3.14*6
37.68m
2.
Given,
d=14in
Now,
C=πd
3.14*14
43.96 in
I used 3.14 for value of π.
4. Given,
r=28ft
Now,
C=2πr
2*3.14*28
175.84 ft
I used 3.14 for the value of π.
5.
Given,
C=78.5 ft
Now,
C=πd
78.5/π=d
d=78.5/3.14
d=25 ft

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4 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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Delvig [45]

Answer:

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Step-by-step explanation:

The figure has 2 semi-circles.

First we find the area of each circle using the formula \pi r^{2} because that is the area formula for a circle.

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Then we are to find the diameter of the second semi-circle. Given the entire length to be 30 feet, 30-22 leaves us with 8 feet as its diameter thus r=4.

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Then, plugging both into the formula for area of a circle, we get

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We must divide each by two because we are only looking for semi-circle which is exactly half the area of a full circle.

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8 0
3 years ago
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mestny [16]

Answer:

How the zero product property applies to solving quadratic equations?

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Step-by-step explanation:


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3 years ago
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