The circumference formula is pi times diameter. So first divide 56.52 by 3.14 and that is 18. So the diameter is 18
To find the area of a quarter circle, you simply take a quarter of a full circle. As all quarters are equal, this means that the formula would be <span><span>π<span><span>r2</span>4</span></span><span>π<span><span>r2</span>4</span></span></span><span>. But wait, there's more. If you notice, </span><span><span>π<span><span>r2</span>4</span>=π<span><span>r2</span>2</span></span><span>π<span><span>r2</span>4</span>=π<span><span>r2</span>2</span></span></span><span>. This coincides with the circle formula, just with half the radius. Notice anything? A quarter of a circle can be calculated in the same way a circle a quarter the size can. This means that a quarter circle is equal to a circle a quarter size. In this same way, a ninth of a circle is equal to a circle of one ninth the size.</span>
Answer:
x = p/11, y = 13p/11
Step-by-step explanation:
Answer:
21.8degrees
Step-by-step explanation:
Given the following
Length of shadow =opposite = 12ft
Height of tree = adjacent = 30ft
Required
angle of elevation
tan theta = opposite/adjacent
tan theta = 12/30
tan theta = 0.4
theta = 21.8degrees
angle of elevation is 21.8degrees
Answer:
k = 1
Step-by-step explanation:
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