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kvv77 [185]
3 years ago
9

What is the ratio AC: CB?​

Mathematics
1 answer:
sleet_krkn [62]3 years ago
7 0

Answer:

D. 1 : 2

Step-by-step explanation:

Given:

A(-6, -2),

B(6, 7),

C(-2, 1)

Required:

Ratio of AC : CB

SOLUTION:

Find AC:

AC = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

A(-6, -2) = (x_1, y_1)

C(-2, 1) = (x_2, y_2)

AC = \sqrt{(-2 -(-6))^2 + (1 -(-2))^2}

AC = \sqrt{(4)^2 + (3)^2}

AC = \sqrt{16 + 9} = \sqrt{25}

AC = 5

Find CB:

CB = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

C(-2, 1) = (x_1, y_1)

B(6, 7) = (x_2, y_2)

CB = \sqrt{(6 -(-2))^2 + (7 - 1)^2}

CB = \sqrt{(8)^2 + (6)^2}

CB = \sqrt{64 + 36} = \sqrt{100}

CB = 10

Find AC : CB

AC : CB = 5 : 10 = 1 : 2

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