A horse is tethered to a stake by a rope of 30 m long. If the horse moves along the circumference of a circle keeping rope tight, find that how far the horse have gone from initial point if the rope has traced an angle of 105° at the centre ?
55 m
5.5 m
155 m
25 m
Two sheets of paper with measure 22 cm by 28 cm are taken. Each sheet is then rolled into a cylinder, one having the height 22 cm and the other of height 28 cm. The difference in their volumes (in cm3) will be
216
294
316
0
B.
294
Consider two cylinders C1 and C2
Let r1, h1, be the radius and height of C1 and r2, and h2 be the radius and height of C2
Then,
If the radius of the circle is increased 3 times, then how many times the new circumference increase from its original size ?
3
9
None of these
How many bricks will be required to construct a wall 3 m long, 1.5 m high and 0.4 m thick, if each brick measures 30 cm x 15 cm x 8 cm ?
502
550
500
501