Question

What is the perimeter of △ABC△ABC?

Round each step to the nearest tenth.



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https://static.k12.com/nextgen_media/assets/1583035-IM1_150303_6_Q005Q.jpg is this 20?
@richley @steve816

Answer 1

Could I help you if they did not respond?

Answer 2

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

Answer 3

It is not helpful for you to deliver the answers without showing up and proving how they could be figured out!

Answer 4

@3mar can you help me with the other one

Answer 5

Of course.
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