Question 1)
I assume it asks about the circumference (of only the circle arc)
C=r*2*pi
r=2
-> C=4pi
1 Quarter only of the circle: C/4=pi=3.1
if it's the perimeter of the shape then you need to add the two 2in sides
C=3.1+2*2=7.1
2)
C=r*2*pi, but not a full circle, only semi-> divide by 2-> C=r*pi
r=30
C=30pi=94.2
3)
the radius of the semicircle is 6/2=3mm
semicircle C=r*pi=3pi
add the rectangle perimeter
3pi+2*3+6=12+3pi=21.4
4)
C=2r*pi
insert 2r=d=12
C=12pi=37.7
5)
C=2r*pi
r=10
C=20*pi~62.8
3 rotations of the wheel->
distance=C*3=188.4
To convert 1.3 miles into inches we proceed as follows;
1 mile=63360 inches.
Therefore the number of inches in one mile will be as follows:
(1.3*63360)
=82,368 inches
Therefore, we conclude that our answer is 82,368 inches.
1, 2, 3, 4, 5 idk i need some sets to be able to answer
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Answer:
∠X = 48°
∠Y = 96°
∠Z = 36°
Step-by-step explanation:
All angles of a triangle are equal to 180.
(3.2n) + (6.4n) + (2.4n) = 180
12n = 180
n = 15
Now, we will solve for each angle.
∠X = 48°
3.2n
3.2(15)
48°
∠Y = 96°
6.4n
6.4(15)
96°
∠Z = 36°
2.4n
2.4(15)
36°
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