Best Answer

The percent of decrease is the amount it has decreased by. 49-28 is 21, so set up 21/49 to x/100. Cross multiply to get 2100 = 49x, then divide both sides by 49. From this you get about 42.857, so the percent of decrease is 42.857%.

Q: What is the percent of decrease from 49 cm to 28 cm?

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-30.6122%

87.5 is less so it must be a decrease!

49 square centimetres.

Area = 49 cm2 so side = sqrt(49) cm = 7 cm and therefore, perimeter = 4*side = 28 cm.

7*7 = 49 square cm

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-30.6122%

87.5 is less so it must be a decrease!

49 cm2

49 cm2

49 cm2

28 cm

28 cm

49 square centimetres.

Area = 49 cm2 so side = sqrt(49) cm = 7 cm and therefore, perimeter = 4*side = 28 cm.

If it has a 28 cm perimeter, its sides are length 28/4 = 7. So, the area would be 7 x 7 = 49 cm2.

Area = 49 cm2 => length of side = 7 cmThen perimeter = 4*7 = 28 cm.Area = 49 cm2 => length of side = 7 cmThen perimeter = 4*7 = 28 cm.Area = 49 cm2 => length of side = 7 cmThen perimeter = 4*7 = 28 cm.Area = 49 cm2 => length of side = 7 cmThen perimeter = 4*7 = 28 cm.

It is: 4*7 = 28 cm