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Question
Find distance between point A(7, 5) and B(2, 5).
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Solution
Let A(x1, y1) = A(7, 5) and B(x2, y2) = B(2, 5)
∴ By distance formula,
d(A, B) = `sqrt((x_2 - x_1)^2 + (y_2 - y_1)^2`
= `sqrt((2 - 7)^2 + (5 - 5)^2`
= `sqrt((-5)^2 + 0^2)`
= `sqrt(25)`
= 5 cm
∴ The distance between points A and B is 5 cm.
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