Consider a right circular cone of base radius 4 cm and height 10 cm. A cylinder is to be placed inside the cone with one of the flat surface resting on the base of the cone. Find the largest possible total surface area (in sq. cm) of the cylinder.
Correct Answer : A
On a semicircle with diameter AD, chord BC is parallel to the diameter. Further, each of the chords AB and CD has length 2, while AD has length 8. What is the length of BC?
Four horses are tethered at four corners of a square plot of side 14 metres (m) so that the adjacent horses can just reach one another. There is a small circular pond of area 20 m2 at the centre. The area left ungrazed is:
The six sides of a box were made of half centimeter thick wood. The outer dimensions of the box are 21 cms. long, 11 cms. broad and 6 cms. high. If the total amount paid for painting its inner surfaces was Rs. 70, price paid per square cm. of the painting was