Answer:
it's hard man sorry !
Step-by-step explanation:
The answer Is 4! Good luck
Let r represent the radius of the smaller circle and R the radius of the larger
circle.
Apply ratios: the radius of the smaller circle to the radius of the larger circle.
r: R = 3 : 7.
I complete rotation = 360 degrees.
1st:
For one complete rotation of the smaller circle, the larger circle is rotated through (3/7)*(360) = 154.3 degrees
2nd:For one complete rotation of the larger circle, the larger circle is rotated through (7/3)*(360) = 840.0 degrees
This is equivalent to (840/360) = 2.3 rotations
Alternatively, use the ratios: The number of rotations = R/r = 7/3 = 2.3 rotations
Hope this helped☺☺
first one is 1 the bottom is 10 2 in 20 3 in 30 4 in 40 5 in 50 6 in 60 7 in 70 8 in 80 9 in 90 then 100
Area = 42 sqaure inches
Length =7
Area = l x width
if the width is X then 7x=42 and x= 42/7 = 6
there X (width) is 6
perimeter thus is 7+7+6+6= 26
The answer is 26
