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1 Answers · Education & Reference · 19/03/2011

per of a rectangle means that 2 sides are equal and longer than the other 2 sides which are also equal. thus, basically 4*?=16, 4! so 2 sides are over 4 and 2 sides are less than 4. start there and do the math...

1 Answers · Education & Reference · 09/10/2011

Your pencil is about 7mm thick. The length of a football field is about 90m A standard film size for a camera is 35cm The zipper on my jacket is about 70cm long Jacob, our basketball centre, is 203cm tall A...

3 Answers · Education & Reference · 28/04/2011

the formula to find the surface area of a sphere is SA=4pir^2 (four x pi x radius squared) from there you should be able to solve it. 4 x 3.1459 x 4.5^2 plug it into a calculator.

1 Answers · Education & Reference · 11/01/2013

4 and 10 are corresponding sides. The answer is not simply 4/10. When there are corresponding sides in a ratio problem like this, you square the answer. The answer, therefore, is 16/100 or 4/25.

2 Answers · Education & Reference · 28/05/2010

2(l + b) = perimeter 2(l + 7) = 38 2l + 14 = 38 2l = 38 - 14 = 24 l = 24/2 l = 12 To check: substitute l back into equation 2(12 + 7) = 38 2 (19) = 38 38 = 38 LHS = RHS

1 Answers · Education & Reference · 20/04/2011

Yay Geometry! Okay, the first step you need to do is identify what equation to use. For this we use V=lwh because it's a rectangular prism. Now, we don't have the measurements, so not much can be solved. It asked...

1 Answers · Education & Reference · 06/04/2011

So you need to find the area of the inside of the pan, to see how much oil he'll need to coat it. The base of the pan is a square of 30cm by 30cm, and it has walls which are 5cm high on each side of the square, each of the walls are therefore 30cm wide because they span the...

4 Answers · Education & Reference · 18/01/2014

volume of a rectangular prism can be found as follows: volume=length*height*width. So volume=5*12*4=240cm

2 Answers · Education & Reference · 17/03/2013

Let a= x b =23-x c= 17 solve for x first x^2 + (23-x)^2 = 17^2 x^2 + 529 -46x+x^2 = 17^2 2x^2 -46x = -529 + 289 2x^2 -46x = -240 2x^2 -46x +240 = 0 x^2 -23x + 120 = 0 Use quadratic formula to solve for two possible answers for x Then substitute back to solve for the tow sides ... x and 23-x...

1 Answers · Education & Reference · 28/12/2014