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Daryn121504
19.03.2021 •
Mathematics
In a circle with radius 2cm, a sector area has πcm². What's the measure of the arc of the sector?
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Ответ:
Step-by-step explanation:
Hey mate !!
Here's your answer !!
Given :
Radius = 7 cm
The angle between the arc = 30°
To find :
Area of sector = ?
Proof :
We know that,
Area of sector = Ф / 360° * πr²
Here Ф = 30°, r = 7 cm, π = 22 / 7
Substituting them in the formula we get,
= Area of sector = 30° / 360° * 22 / 7 * 7 * 7
=> Area of sector = 1 / 12 * 22 * 7
=> Area of sector = 154 / 12
=> Area of sector = 12.83 cm²
Hope my answer helped !!
Cheers !!
Ответ:
So plug in 3.14 for π and 41 for d.
It should look like this A=3.14(41).
Now solve and you get 128.74.
Lastly round and your answer is 128.7
Hope this helps :-)