A person standing on the bank olarof the top of a building of an organisatiowild life, standing on the opposite bank is 60°. When he moves 40 metresaway from the bank, he finds the angle of elevation to be 30°. Find theheight of the building and the width of the rivern working for conservation of30. Find the area of the shaded design of Fig. 3, where ABCD is a squareof side 10 cm and semicircles are drawn with each side of the square as Ddiameter. (Use π = 3.14)omFig 3

A person standing on the bank olarof the top of a building of an organ

1.	A person standing on the bank olarof the top of a building of an organisatiowild life, standing on the opposite bank is 60°. When he moves 40 metresaway from the bank, he finds the angle of elevation to be 30°. Find theheight of the building and the width of the rivern working for conservation of30. Find the area of the shaded design of Fig. 3, where ABCD is a squareof side 10 cm and semicircles are drawn with each side of the square as Ddiameter. (Use π = 3.14)omFig 3
Answer» Like if you find it useful