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Bond [772]
3 years ago
13

prove that if two circles are tangent externally then the common internal tangent bisects a common external tangent.

Mathematics
1 answer:
Scilla [17]3 years ago
5 0

Explanation:

Consider the attached diagram.

Circles A and B have mutual tangents CF and DE that intersect at point F.

We know that the two tangents to a circle from an external point are congruent, so ...

  FE≅ FC

  FD ≅ FC

By the transitive property of congruence, both segments congruent to FC are congruent to each other:

  FD ≅ FE

Therefore, CF is a bisector of DE.

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djyliett [7]

Answer:

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Step-by-step explanation:

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To round to the nearest hundredth, we look to the digit right of the hundredth digit, 7. We notice that the digit in the thousandths place is 3. When rounding, if a number is 4 or less, we change that digit to a 0, along with the digits beyond it. If a number is 5 or more, we bump up the digit to the next number. Since 3 is less than 4, we change 0.073 to 0.07.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

8 0
2 years ago
90 to the nearest tenth
melamori03 [73]

Answer:

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Step-by-step explanation:

<em>Hey there!</em>

Well 90.000 to the nearest tenth is just 90 because there is no decimal places to round.

<em>Hope this helps :)</em>

7 0
3 years ago
Read 2 more answers
You and your friend are selling magazine subscriptions for a fundraiser. After w weeks, you have sold (7w+6) subscriptions and y
Mariulka [41]
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3 years ago
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Drupady [299]
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3 years ago
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Svetach [21]
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