Class 6 Maths Understanding Elementary Shapes | Angles-‘Acute’, ‘Obtuse’ and ‘Reflex’ |

__Angles-‘Acute’, ‘Obtuse’ and ‘Reflex’__

An acute angle is one that measures less than 90˚.

An obtuse angle is one that measures between 90˚ and 180˚.

A reflex angle is an angle that measures between 180˚ and 360˚.

__Problem: __Classify each one of the following angles as right, straight, acute, obtuse or reflex:

Solution:

(a) Acute angle as its measure is less than 90 degree.

(b) Obtuse angle as its measure is more than 90 degree but less than 180 degree.

(c) Right angle as its measure is 90 degree.

(d) Reflex angle as its measure is more than 180 degree but less than 360 degree.

(e) Straight angle as its measure is 180 degree.

(f) Acute angle as its measure is less than 90 degree.

.