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2 years ago

Use the x-coordinates A and C to calculate AC without counting

Mathematics

1 answer:

alexandr1967 [171]2 years ago

3 0

21 its 21 because it is 21

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choli [55]

Answer:

Step-by-step explanation:

side 1 = |18-3|= 15

side 2 = |12-3| = 9

side 3 = |16-4| = 12

side 4: $\sqrt{(18-12)^2 + (4-16)^2} \\ \sqrt{36+144} \\ = \sqrt{180} \\ = 13,4$

perimeter = 15 + 9 + 12 + 13,4= 49,4 = 49

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2 years ago

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Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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