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Nataly_w [17]
3 years ago
13

Use the distance formula to find distance between two points. Need help on this ASAP.

Mathematics
1 answer:
astra-53 [7]3 years ago
3 0

Answer:

a) 20 units

b) 2 √10 units

c) 2 √17 units

Step-by-step explanation:

The distance formula is;

D = √(y2-y1)^2 + (x2-x1)^2

a) D = √(-7-9)^2 + (-7-5)^2

D = √256 + 144

D = √400

D = 20

b) D = √(10-8)^2 + (9-2)^2

D = √(2)^2 + 6^2

D = √4 + 36)

D = √40

D = 2 √10 units

c) D = √(1 + 7)^2 + (-8+10)^2

D = √(64 + 4)

D = √68

D = 2 √17 units

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Answer:

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Step-by-step explanation:

Similar triangles have equal angles in measures

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∵ m∠A = 15°

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→ Substitute the measures of ∠A and ∠B

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→ Subtract 135 from both sides

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m∠A must equal m∠J

m∠B must equal m∠K

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→ Add the like terms in the left side

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→ Subtract 60 from both sides

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∴ m∠K = 120°

∴ m∠B = m∠K

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