Understanding Elementary Shapes Test - 1

Explanation:

In clock hor hand moves 360^o from 12 to 12. o from 4 to 7 it is 3 hr , so fract of 3 hr from 12 hr =3/12=1/4

Or the hour hand moves 90^o from 4 to 7 , so fraction of 90 from 360^o =90/360=1/4

Explanation:

Hour hand moves 360 from 12 to 12 . From 3 to 6 it is 3 hrs so fraction of 3 hrs from 12 hrs is=3/12=1/4. Or as hour hand moves 90 to cross 3 to 6 so fraction is 90^o / 360^o = 1/4

Explanation:

In clock hour hand moves 12 hr from 12 o' clock  to 12 o' clock. Fro12 to it 3 it is 3 hr , so fraction of 3 hr from 12 hr =3/12=1/4.

Or, the hour hand moves360^o form 12 to 12, from 12 to 3 it moves 90^o, so fraction of 90^o from 360^o =90/360=1/4

Explanation:

In clock hour hand moves 12 hr from 12 o' clock  to 12 o' clock. From 3 to 9 it is 6 hr , so fraction of 6 hr from 12 hr =6/12=1/2.

Or, the hour hand moves360^o form 12 to 12, from 3 to 9 it moves 180^o, so fraction of 180^o from 360^o =180/360=1/2

Explanation:

Straigh angle = 180^o , Acute angle < 90^o, So if sum of two angle is 180^o and one angle is less than 90^o then other should be more than 90^o which is an obtuse anlge

Explanation:

if the sum of two angle is 90^o then each of the angle is must less than 90^o. Any angle less than 90^o is acute angle. So both the angles are acute angle

Explanation:

An angle which is exactly 180^o is a straight angle

Explanation:

An obtuse angle is a form of angle tha measures wider than 90^o and less than 180^o

An obtuse angle is a form of angle that measures wider than 90° and less than 180°.

Explanation:

An acute angle is an angle smaller than right angle. It is less than 90^o

Explanation:

An obtuse angle is a form of angle that measures wider than 90^o and less than 180^o