Mathematics
The curved surface area of a right circular cone is half of another right circular cone. If the ratio of their slant heights is 2 : 1 and that of their volumes is 3 : 1, find ratio of their:
(a) radii
(b) heights
Related Questions
In the adjoining diagram PQ, PR and ST are the tangents to the circle with centre O and radius 7 cm. Given OP = 25 cm. Find :
(a) length of ST
(b) value of ∠OPQ, i.e. θ
(c) ∠QUR, in nearest degree
Use ruler and compass to answer this question. Construct a triangle ABC where AB = 5.5 cm, BC = 4.5 cm and angle ABC = 135°. Construct the circumcircle to the triangle ABC. Measure and write down the length of AC.
A cylindrical drum is unloaded from a truck by rolling it down along a wooden plank. The length of the plank is 10 m and it is making an angle of 10° with the horizontal ground. Find the height from which the cylindrical drum was rolled down. Give your answer correct to 3 significant figures.
The data given below shows the marks of 12 students in a test, arranged in ascending order :
2, 3, 3, 3, 4, x, x + 2, 8, p, q, 8, 9.
If the given value of the median and mode is 6 and 8 respectively, then find the values of x, p, q.