A picture is twice as long as it is wide. The frame adds 5 centimeters to each dimension. If the area of the frame alone is 250cm^2, find the length and width of the picture.

Answer 1

area of frame = perimeter *5= (2(L+W))*5

length = width +5

so aea of frame= (2*((W+5)+W))*5--------> 10(2W+5)= 20W +50

20W +50= 250(the area of frame)

----> 20 W=200

---> W=10

so length =15

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