Question

question 4 of 10 if (overleftrightarrow{jk}perpoverleftrightarrow{lm}), which statement is true? a. (overleftrightarrow{jk}) and (overleftrightarrow{lm}) are coplanar and do not intersect. b. (overleftrightarrow{jk}) and (overleftrightarrow{lm}) meet at a 90° angle. c. (overleftrightarrow{jk}) and (overleftrightarrow{lm}) meet at a 45° angle. d. (overleftrightarrow{jk}) and (overleftrightarrow{lm}) are not in the same plane.

Explanation:

The symbol $\perp$ means perpendicular. Perpendicular lines are in the same plane (coplanar) and meet at a 90 - degree angle.

Answer:

B. $\overleftrightarrow{JK}$ and $\overleftrightarrow{LM}$ meet at a 90° angle.