## Julie-0606 2 years ago 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.

1. aajugdar

|dw:1363526480912:dw|

2. aajugdar

is it trigonometry problem?

3. aajugdar

@ZeHanz i don't get this

4. ZeHanz

We could assume the holes are drilled at equal distance r from the bottom-left corner. If so, \((x_1, y_1)\) and \((x_2, y_2)\) both would have to satisfy the equation x²+y²=r². We could also assume certain angles at which they are to be drilled. I think we have too little information...

5. aajugdar

yeah confusing

6. DHASHNI

@Julie-0606 : insufficient data ,,,, they didnt provide from where they are holing

7. Julie-0606

8. Julie-0606

Sorry forgot to attach that :/

9. DHASHNI

in polar form we represent a point as (rcos a, r sin a) where r is the radius and a is the angle so (x1,y1) = (34 cos 25 ,34 sin 25) ans (x2,y2) = (34 cos (25+24) , 34 sin (25+24)) =(34 cos49,34sin 49)