A straight angle is an angle whose degree measure is exactly 180 degrees.
From the businessweek.com
When he did put it on the ground, he didn't have a straight angle.
From the sacbee.com
The matching chairs have only one straight angle.
From the dailyherald.com
A characteristic property of hyperbolic geometry is that the angles of a triangle add to less than a straight angle.
From the en.wikipedia.org
The racquet movement is typically used to suggest a straight angle but then play the stroke cross court, or vice versa.
From the en.wikipedia.org
Surgeons had to shoot the laser beam directly from its large generator and could do so only at a straight angle, rendering it impossible to reach deeper tissues.
From the cnn.com
This is often caused by the headpin deflecting off other pins and hitting the 5 pin before the ball does, causing it to chop at a straight angle and miss the 8 or 9 pin.
From the en.wikipedia.org
But AOH is a straight line, so angle DOH and DOA are supplementary angles.
From the en.wikipedia.org
Artur parries out to Commons, who hacks a shot from a tight angle straight at the keeper.