angles,types,interior and exterior points

Right angle

m/ PQR = 90°

A right angle measures 90°

An acute angle measure less than 90°

˂ 90°

OBTUSE ANGLES

An obtuse angle measures more than 90°

(˃ 90°)

The bigger angle is

The bigger angle is m /_UVW=110°

In the figure alongside, the points X, Y

,Z , K, L and M are on ˂ XYZ

The points L, M and N are in the Interior of the angle / ABC

EXTERIOR POINTS

The points X, Y and Z are points in the exterior angle of / ABC.

SUMMARY Right angle, acute angle and obtuse angle are the

three/3 types of angles.

Right angle measures 90°.(= 90° )

An acute angle measures less

than 90°.( ˂ 90°)

An obtuse angle measures

more than 90°.( ˃90° )

The points P, Q and R are in

the Interior of the ˂ ABC.

The points H, I and J are

points in the Exterior of ˂ ABC

EVALUTION

What is an acute angle?

What is the measure of right angle?

In the figure shown on the right

hand side, write the name of the

points that lie on the angle, in its

interior and in its exterior.

Points on the angle Points in the interior

of the ˂ ABC

Points in the interior

of the ˂ ABC