Answer:
<em>3.12 m</em>
Step-by-step explanation:
13 - 9.88 = 3.12
The answer to this is 20. You can find the length by using the formula l=a/w
13: 72.25
14: 52
For 14, you need to split the figure into a triangle and rectangle.
Answer/Step-by-step explanation:
Area of a rectangle = Length × Width
Width of the large rectangle = a
Length of the large rectangle = (2 + 3 + 4)
Therefore:
Area of the large rectangle = a(2 + 3 + 4)
