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Free study guides and discussions about various topics in Mathematics. Thanks for stopping by!

A geometry problem involving proportions

A bit of a classic problem, say, from a picture-framing shop.

A photograph is $20cm$ by $25cm$. A frame around the photograph needs to have an area of $500cm^{2}$. What should the dimensions of the frame be?

Have a look at the solution and discussion HERE.

FOILing and factoring - not just for polynomials!

A geometry problem with a system of equations