A students desk at home is rectangular in shape and measures 3 feet wide by 5 feet long. Find the perimeter of the desk in centimeters. Then convert the answer to decimeters. Please help :)
3 ft X 5 ft; so 3(2) + 5(2) = 6 + 10 = 16ft^2. So there are 12 in. in a foot, so that's 192in. There are 2.54 centimeters in an inch, so then you can say that there are 487.68 centimeters in 192 inches. Then to decimeters; 10 are in 1 centimeter, so that gives you 4876.8 decimeters, right? :)
WAIt sorry no no no no there are 0.1 decimeters in a centimeter, SORRY. Its 487.68 * 0.1 = 48.768dm I think
I know the answer is 141.4 yards.....but I'm lost on how to figure it out.
The problem it wants the answer in centimeters, then that converted to decimeters. Where do the 141.4 yds figure?
I suspect you are looking at an answer for a different question.
okay so sorry 16 foot
O.K yes the perimeter is 16 foot, but that is an intermediate step, now you must convert feet to centimeters.
I know 4 feet = 121.92, so 16 ft = 4 times 121.92=487.68 cm
how is the 16 feet figured?
1 cm = .1 dm, so 487.68 (.1)= 48.768
Perimeter is the sum of the sides of the desk, 5+5+3+3=16 ft.
yay! I understand thanks so much.....
Great. Good luck.
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