A took 15 seconds to cross a rectangular field diagonally walking at a rate of 52m/minand B took the same time to cross the same field along its sides, walking at the rate of 68m/min. The area of the field is:A. 30m2B. 40m2C. 50m2D. 60m2

In the figure (not to scale) AB = CD, angle DAP = angle DPA and A,B,C,D are concycli. If angle ADC = 80°, then find angle ACD.

Solve : 2^(x+2)+2^(x-1)=9

Volume of a Cylinder

What length of tarpaulin 3m wide will be required to make conical tent of height 8m and base radius 6m ? Assume that the extra length of material that will be required for stitching and wastage in cutting is approximately 20cm ( Use pi= 3.14)

Find the square of: 2a +b