Question

Find the distance between point A and point C. Round to the nearest tenth.

A) 9.4
B) 12.2
C) 7.8
D) 8.6

Answer 1

D) 8.6

Explanation:

The formula of a distance between two points:

`\boxed{d=√((x_2-x_1)^2+(y_2-y_1)^2)}`

We have the points A(7, 5) and C(0, 10). Substitute:

`d=√((0-7)^2+(10-5)^2)=√((-7)^2+5^2)=√(49+25)=√(74)\\\\√(74)\approx8.6`