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3 years ago

A circle has a sector with area 64/5 pi

Mathematics

1 answer:

Helen [10]3 years ago

4 0

Answer:

The area of the circle is $16\pi\ units^2$

Step-by-step explanation:

we know that

The area of complete circle subtends a central angle of 2pi radians

using proportion

Find the area of the circle

$\frac{(64\pi/5)}{(8\pi/5)}= \frac{x}{2\pi}\\\\x=2\pi(64)/8\\\\x=16\pi\ units^2$

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Arisa [49]

Answer:

Look below

Step-by-step explanation:

I'm going to use B as my example to explain: B (-3,4)

You are going to need to draw a coordinate plane. When drawing the X axis, you want the highest X point to be 6 due to the fact that that is your highest x value. Then you want the lowest X point to be -6. Same will apply with the Y axis.

Next you are going to put a point in the middle of the plane which is called the origin (0,0).

Going from the origin, you want to follow the x axis the get to -3 which will be going left since its negative. Then since the Y axis is vertical, you are going to go up 4 times since the 4 is positive.

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