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Earn +20 ptsQ: Find d 140 100 80
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Find d 140 100 80 degrees?
A+ = 90
What is the diagonal of square with a side of 80?
d=x√2 where d is a diagonal and x is a side d=80√2 (or 113.137)
How do you find the diameter of a circle if you have the area?
The formula A = (pi) r2 lets you find the radius, which is half of the diameter. Divide the area by pi, then take the square root of that value, which is the radius. Then multiply by 2 to get the diameter. -- Example: Area = 100 A = (pi) r2 100 = (3.1416) r2 r2 is 100/3.1416 or about 31.83, and the square root is 5.64 r = 5.64 and D = 11.28
If the radius of a circle is 100 cm then the diameter of the circle is how many meters?
2 meters
What is the diameter of a circle with the area of 25?
The functional relation between the diameter d and the area a is a = (pi)(d/2)2. Therefore, (pi)d2 = 22(25) = 100; d = sq rt (100/pi) = 5.6 units, to the justified number of significant digits.
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