or right angles. For example, the angle in the following diagram is acute - the line turns less than a right angle to get to the other line, so it must be between \(0^\circ\) and \(90^\circ\).

There are examples everywhere ... but possibly the most easily recognisable is the right angle. A right angle is exactly ¼ of a full 360 degree turn. When two straight lines intersect each ...

For example, one angle is 130 degrees ... If you deduced that the unknown angle is 50 degrees, you are right on target. Now That's Interesting The word geometry, roughly translated from Greek ...