A triangle pointing up is rotated 90 degrees clockwise. Which direction is the point now facing?

A triangle pointing up is rotated 90 degrees clockwise. Which direction is the point now facing?

• A. Left
• B. Right
• C. Up
• D. Down

Answer: (B)

Rotating an object 90 degrees clockwise moves the direction the point faces clockwise as well. An upward-pointing triangle has its tip at the top. After a quarter-turn to the right, that top tip shifts to the right side, so the point ends up facing to the right. In general, a 90-degree clockwise rotation maps up to right (and right to down, down to left, left to up). So the point now faces the right.

Rotating an object 90 degrees clockwise moves the direction the point faces clockwise as well. An upward-pointing triangle has its tip at the top. After a quarter-turn to the right, that top tip shifts to the right side, so the point ends up facing to the right. In general, a 90-degree clockwise rotation maps up to right (and right to down, down to left, left to up). So the point now faces the right.