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Step2247 [10]
3 years ago
10

Given the circumference of a circle is 8π centimeters, calculate the area of the circle in terms of π.

Mathematics
1 answer:
arsen [322]3 years ago
6 0

Answer:

16π cm²

Step-by-step explanation:

circumference = 2πr

Area = πr²

We need to determine r to calculate the area

2πr = 8π

Divide both sides of the equation by 2π to find r

r = 4

Now, we determine area.

area =  πr² =   π4² = 16πcm²

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6 0
3 years ago
... tbh idek anymore
stepan [7]
1/4 is the correct answer
4 0
3 years ago
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Which algebraic expression is equivalent to the expression below?
Anarel [89]

Answer:

A. 4x²+20x+25

Step-by-step explanation:

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Then apply the exponent:

(-2x-5)² = (-2x-5)(-2x-5) = 4x²+10x+10x+25 = 4x²+20x+25

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3 years ago
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Quadrilateral OPQR is inscribed inside a circle as shown below. Write a proof showing that angles O and Q are supplementary
k0ka [10]
Hello,

very simple they intercept supplementary arcs. (making a sum of 360°/2 for inscribed angles )
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3 years ago
How would you use a number line to round 16800 to the nearest ten thousand?
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