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OpenStudy (anonymous):
write an expression for the perimeter of the rectangle .. length x cm width 20 cm ? help ;*
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OpenStudy (anonymous):
|dw:1346961800311:dw| perimeter is the sum of the lengths of the sides
OpenStudy (anonymous):
Use the formula of the perimeter of rectangle and substitute in the known values
OpenStudy (anonymous):
okay , what about the area now ? do i use a diffrent formula ?
OpenStudy (anonymous):
area of a rectangle A=W*L
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