Answer:
2.5 pi
Step-by-step explanation:
Comment
If you were trying to get the area of a whole circle, you would use
Area = pi r^2
You have to modify the formula to show that just part of the circle has an area that you are interested in.
The new formula is
Area = (theta/360) pi r^2
Givens
r = 30 cm
theta = 100
Solution
Area = (100 / 360) * pi * r^2 Substitute the givens into this formula
Area = (5 / 18) * pi * 3^2 Expand
Area = (5 / 18) * pi * 9 Cancel 9 into 18
Area = 5/2 * pi
Area = 2.5 * pi
Answer:
the first fraction is 9 and the second one is -5
Step-by-step explanation:
X=15
Since 20/4 is 5 and 5•3 is 15
Answer:
True: 1, 4, 5
Step-by-step explanation:
Main notations:
A plane is a flat 2D surface with no thickness that extends infinitely far. (Option 1 is true)
A point is an exact location. It has no size, no width, no length, no depth, only position. (Option 2 is false)
Collinear points are two or more points that lie on the same line and have different location. (Option 3 is false)
A line is straight (no bends), has no thickness, and extends in both directions without end (infinitely). (Option 4 is true)
The distance between two points is the length of a line segment that connects them. (Option 5 is true)
Answer:
Option
Step-by-step explanation:
If you look at the angle, it's an acute angle so it narrows your choices down a lot. Another indicator is the green lines showing similar angles.
