Cindy wants to collect more than 80 cans for the recycling drive at
2 answers:
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The sum of all the measurements is just the average times the number.
So if the average of all 92 is 7 the sum of those is
The average of the last two is 7.2 so their sum is
That means the sum of the first 90 is
so the average of the first 90 is
cm
So if the average of all 92 is 7 the sum of those is
The average of the last two is 7.2 so their sum is
That means the sum of the first 90 is
so the average of the first 90 is
<h2>AREA</h2>
The formula for finding area of a square is:
In a square, all the sides are the same. Each side is 6 meters long. Plug in 6 to the formula.
Multiply:
The area of the square is 36 m²
<h2>PERIMETER</h2>Perimeter is the distance around a shape. To find perimeter, you have to add all all the side lengths. The formula for finding perimeter is:
Remember that squares have 4 sides, and all length(s) and width(s) measure the same. The length and width measure the same. Plug in the numbers into the formula:
Simplify:
Add:
The perimeter of the square is 24 m