The Total Surface Area Of Rectangular Solid Is 4.65cm. If The Solid Is 7cm Long And 5cm Wide, Calculate The Height.
2 answers
2.5cm
let the height be h cm
so 2(7h) + 2(5h) + 2(5)(7) = 4.65 cm^2
14h + 10h + 70 = 4.65
24h = negative
this question is bogus, once you realize that the area of the base alone would be 35 cm^2, without even considering the other surfaces.
How can the total be only 4.65 cm^2
so 2(7h) + 2(5h) + 2(5)(7) = 4.65 cm^2
14h + 10h + 70 = 4.65
24h = negative
this question is bogus, once you realize that the area of the base alone would be 35 cm^2, without even considering the other surfaces.
How can the total be only 4.65 cm^2
2 answers