The measurements of 2 rectangles are:
(a) length 24cm and width 18cm.
(b) length 48cm and width 14cm.
Find:
(1) The ratio of their areas.
(2) The ratio of their perimeters.
please show all working out
There's no trick - you have to calculate the area and perimeter of both rectangles and take the ratio:
(1) $\displaystyle \frac{\text{Area of a}}{\text{Area of b}} = \frac{\text{length of a * width of a}}{\text{length of b * width of b}}$
(2) $\displaystyle \frac{\text{Perimeter of a}}{\text{Perimeter of b}} = \frac{2*(\text{length of a + width of a})}{2*(\text{length of b + width of b})} = \frac{\text{length of a + width of a}}{\text{length of b + width of b}}$
I'll let you substitute the lengths and do the calculations.
Post again of you're still having trouble.