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Elena L [17]
3 years ago
13

Please help, refer to the picture for information.

Mathematics
1 answer:
aleksklad [387]3 years ago
5 0

Answer:

b

Step-by-step explanation:

Using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 1, 4) and (x₂, y₂ ) = (4, 1)

d = \sqrt{(4+1)^2+(1-4)^2}

  = \sqrt{5^2+(-3)^2}

  = \sqrt{25+9} = \sqrt{34} → b

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<u>EXPLANATION</u><u>:</u>

In ∆ ABC , ∠ABC = 40°

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