Question

If A = (9.18) and B = (1, 12), what is the length of AB?

A. 11 units
B. 9 units
C. 10 units
D. 12 units

Answer 1

`d^2=(x_2-d_1)^2+(y_2-y_1)^2\\ \\ d^2=(9-1)^2+(18-12)^2\\ \\ d^2=64+36\\ \\ d=√(100)\\ \\ d=10`