Question

Which of the following pair(s) of circles are externally tangent? Select all that apply.

Answer 1

B & C

Explanation:

Hello, the answer to your question would be the above, based off of the common external tangent definition.

A common external tangent does not intersect the line segment joining the centers of circles.

Therefore, viewing the graph, we can deduce that B & C is the correct answer.

The other two are internally tangent, due to the fact they intersect the line segment adjoining the circle centers.

Answer 2

B & C

Explanation:

Hello, the answer to your question would be the above, based off of the common external tangent definition.

A common external tangent does not intersect the line segment joining the centers of circles.

Therefore, viewing the graph, we can deduce that B & C is the correct answer.

The other two are internally tangent, due to the fact they intersect the line segment adjoining the circle centers.

Hope it helps.