BlueAngles in Life

Acute Angle

The sides of this shower curtain is an example of a right angle. Right angles equal 90 degrees.

This is an obtuse angle because her arm (from the shoulder to the elbow to the wrist) makes an angle that equals more than 90 degrees.

A straight angle is an angle that equals 180 degrees.

The blue books on left and in the middle both make straight angles.

SUPPLEMENTARY ANGLES

These books also form supplementary angles because the sides of both angles on the book add up to 180 degrees.

This shirt forms complementary angles under the sleeves because if you put those two angles together they are under 90 degrees.

These vertical angles we created on GSP. They are vertical angles by definition because vertical angles are A pair of angles is said to be vertical or opposite if the angles share the same vertex and are bounded by the same pair of lines but are opposite to each other.

VERTICAL ANGLES