posted by Krystal.T .
A rectangular block is 2 cm wider than it is high and twice as long as it it wide. Let x cm be the height of the block.
Find an expression for the total surface area, A cm2, in term of x.
Let L,W and H be the dimensions of the rectangular block.
Total surface area
Substitute these values of H,W and L into the equation for A and simplify.
on a piece of paper draw a rectangle paddock 20 cm long and 10 cm wide
on a piece of paper draw a rectangle paddock 20 cm long and 10 cm wide ?