Mathematics
A semicircular sheet of metal of radius 14 cm is bent to form an open conical cup of the largest size. Find the capacity of the cup. (Take )
Related Questions
If the third, sixth and the last terms of a G.P. are 6, 48 and 3072 respectively, find the first term and the numbers of terms in the G.P.
Find the mode of the following distribution by drawing a histogram :
Mid-value Frequency 28 10 34 8 40 24 46 16 52 8 P and Q are two points on the x-axis and y-axis respectively. M(3, 2) divides the line segment PQ in the ratio 2 : 3. Find :
(i) the co-ordinates of the points P and Q
(ii) the slope of line segment PQ
(iii) the equation of the line through point P and perpendicular to PQ.
The upper part of a tree is broken over by the wind and makes an angle of 42° with the ground. The horizontal distance from the root of the tree to the point where the top of tree meets the ground is 20 m. Find the height of the tree before it was broken.
Give your answer correct to the nearest whole number.