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Ratling [72]
3 years ago
11

What is the area of a sector with a central angle of 10π/7 radians and a radius of 18.4 m? Use 3.14 for π and round your final a

nswer to the nearest hundredth. Enter your answer as a decimal in the box.
Mathematics
1 answer:
balandron [24]3 years ago
8 0

Area of sector= \frac{\Theta}{360}\times \Pi \times r^{2}

Area =\frac{10\Pi }{7 }\times \frac{1}{360}\times \Pi \times (18.4)^{2}

Area = \frac{1800 }{7 }\times \frac{1}{360}\times (3.14) \times (18.4)^{2}

So, Area of the given sector= 759.34 square meters.

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A cylinder with base area 25 pi cm squared and height 3 cm more than the radius
Alina [70]
The correct question is 
Find the volume of a <span>cylinder with base area 25 pi cm squared and height 3 cm more than the radius

we know that
</span>[the volume of a cylinder]=[area of the base]*[height]
[area of the base]=25pi cm²
[area of the base]=pi*r²--------> r²=[area of the base]/pi----> r²=25pi/pi
r²=25--------> r=5 cm

the height is 3 cm more than the radius
so
height=3+5-----> height=8 cm

[the volume of a cylinder]=[25pi]*[8]------> 200pi cm³

the answer is
200pi cm³


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saul85 [17]
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Contact [7]

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Step-by-step explanation:

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