Question 1152220: Three circles, A, B, and C on a straight line.
Radius of circle A is 4cm
Radius of circle B is 8 cm
Radius of circle C is 4 cm
Work out the length of the line X in cm which stretches from the edge of circle A on the left to the edge of circle C on the right. Give your answer in the form:
a+bsqrt(2)
000 Circles ABC
___ Xcm
Many thanks
Joseph
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Three circles, A, B, and C on a straight line.
-------
If you mean:
Three circles, A, B, and C are tangent to a straight line and each other.
=============
Radius of circle A is 4 cm
Radius of circle B is 8 cm
Radius of circle C is 4 cm
Work out the length of the line X in cm which stretches from the edge of circle A on the left to the edge of circle C on the right.
-----
The "edge of a circle" is nonsensical.
Line X is not shown or defined.
------------
It's the distance between the centers of circles A & C.
Draw the circles tangent to the x-axis.
Label the centers A, B & C
AB = BC = 12 cm
-------
The distance from B to line AC is 4 cm
The distance from A to the midpoint on AC sqrt(12^2 - 4^2) = sqrt(128)
|
|
|
