A steel plate has the form of a quarter of a circle with a radius of 49 cm. Two 2-cm holes are to be drilled in the plate. Let (X1,Y1) and (X2,Y2) be the coordinates of the centers of the holes. Find the coordinates for both holes.
let A=(X1,Y1) , B=(X2,Y2) and r = 49 - 2 = 47 so X1= cos 25x r, and Y1 = sin25 r and B=(X2,Y2) so (X2= cos (25+24) = cos (49) r and Y2= sin(49) r finally A= (cos 25r, sin25 r) and B= (cos (49) r , sin(49) r)
