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Help please? thankssdafghjkfdrseaw

Help please? thankssdafghjkfdrseaw-example-1
User Chrisaut
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1 Answer

4 votes

Answer:

20 +2√10 units

Explanation:

The length BC is given by the difference of the x-coordinates on that horizontal line:

BC = 5 -(-5) = 10

The perimeter is the sum of the side lengths, so is ...

P = AB +BC +AC = 10 + 10 + 2√20

P = 20 +2√20 . . . . . matches the last choice

User MarkG
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