神马品牌网进口球墨铸铁圆棒:easy math questions 2
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a furniture company is building coffee tables from glass and wood. each table is 90 cm by 45cm. The width of the wood around the top is 7 cm.
a.) wHat length of wood is needed for the top of each table?
b.) If the edges of the grass are protected with a plastic strip, what length of this strip is needed for each table?
a.) wHat length of wood is needed for the top of each table?
b.) If the edges of the grass are protected with a plastic strip, what length of this strip is needed for each table?
a) 90*2+(45-7*2)*2=246cm
b) 90*2+45*2=270cm
gfh