Question

ANSWER TIL
Passage-1: If a chord of a circle of radius *r' subtends an angle 9 degrees at the centre of the circle, the
mol
2| 180
the area of segment (sq. units).
area of the corresponding segment of the circle is
πθ
sin e
[ ]
21. When radius =r units and 0 = 60° is
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Answer 1

Answer:

e. The efficiency of a machine can be increased by using lubricant in the movable parts.