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3 years ago

7

What is the perimeter of △ABC? Round each step to the nearest tenth.

1 answer:

trapecia [35]3 years ago

5 0

Required Perimeter = AB + BC + CA
AB = sqrt((5 - (-1))^2 + (-1 - 1)^2) = sqrt(6^2 + (-2)^2) = sqrt(36 + 4) = sqrt(40) = 6.3
BC = sqrt((-1 - 0)^2 + (1 - (-3))^2) = sqrt((-1)^2 + 4^2) = sqrt(1 + 16) = sqrt(17) = 4.1
CA = sqrt((0 - 5)^2 + (-3 - (-1))^2) = sqrt((-5)^2 + (-2)^2) = sqrt(25 + 4) = sqrt(29) = 5.4

Perimeter = 6.3 + 4.1 + 5.4 = 15.8 units

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2 years ago

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3 years ago

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aalyn [17]

Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

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Assumptions: How much sugar does cost sprinkle on the brownies. Cost meant Cody

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2 years ago