The area of a circle is \pi r^2, where r is the radius of the circle. The diameter of a circle is the length of a line that passes through the center of the circle and stops at the perimeter of circle. The radius of a circle is half the diameter. Divide the diameter by 2 to find the radius.
1. 2.8 m / 2 = 1.4 m
2 .
![\pi (1.2m)^2](https://tex.z-dn.net/?f=%20%5Cpi%20%281.2m%29%5E2%20)
: Plug in the value we just found for r.
3.
![\pi 1.44m^2](https://tex.z-dn.net/?f=%5Cpi%201.44m%5E2)
: Use the order of operations (PEMDAS).
4.
![\pi * 1.44m^2 = ~4.52 m^2](https://tex.z-dn.net/?f=%5Cpi%20%2A%201.44m%5E2%20%3D%20~4.52%20m%5E2)
The area of the circle is equal to
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Answer:
Scalene
Step-by-step explanation:
The sides are different lengths
Answer:
3π (540°) and 5π(900°)
Step-by-step explanation:
π radian = 180° degree
in the trigonimitrical cercle each point is taken by many values
so π position is also -π position
to move from π to -π you should move 360° (wich is 2π) backwards
π-2π = π
so -π = π +2π
you can get as much as you can of values similar to π using the formula :
π + 2*k*π where k is a relative number
π+ 2*1*π = 3π
π+2*2*π = 5π
3π is 540°
5π is 900°
Answer: 1/3
Step-by-step explanation: The probability is given by the number of times the event could happen (in this case get an "e"), over the number of all the possibilities (in this case, the six letters of the word)
Therefore, probability ![\frac{letter_e}{all letter}=\frac{2}{6} =\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7Bletter_e%7D%7Ball%20letter%7D%3D%5Cfrac%7B2%7D%7B6%7D%20%3D%5Cfrac%7B1%7D%7B3%7D)