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Volgvan
3 years ago
15

If the radius of a circle with center 0 is 15.5, and the measure of angle AOB is 90, what is the length of arc AB?

Mathematics
1 answer:
Zina [86]3 years ago
3 0

The circumference of the circle is found using the formula C = 2 PI r

Circumference = 2 *PI * 15.5 = 31pi

The angle is 90 degrees, which is 1/4 of a complete circle ( 360 degrees).

The arc length would be 1/4 of the circumference:

Arc length = 31pi / 4 = 7.75PI

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Step-by-step explanation:

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If you multiply the upper equation or down equation by one, you will be able to eliminate the x variable.

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3 years ago
What is the coefficient of 4(3)(2)Q​
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Next I will move on to the bigger rectangle. I am going to create a line where the 16 cm stops on the right hand side. This makes our base 16 cm and the height 23. 16 * 23 is 368. The area of this rectangle is 368

And now for our final rectangle. The base for this one is the same as the base of our triangle, so it is 9. The height of this one is 14. 9 * 14 =126. The area of this rectangle is 126. 

Now we need to add these all together. 
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8 0
3 years ago
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