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2 answers:
Answer:
Because it is 3 units to the left of 4 on a horizontal number line.
Explanation:
On a number line
- Adding a positive number means moving to the right
- Adding a negative number means moving to the left
<em>Adding on the number line</em>.
Add 4 + (-3)
<em>Step 1.</em> Find 4 on the number line
Start at 0 and move 4 units <em>to the right</em> (see Image below).
This takes you to 4.
<em>Step 2</em>. Add (-3)
Start at 4 and move 3 units <em>to the lef</em>t.
This takes you to -1.
∴ <em>4 + (-3) = -1</em>
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Given:
Side length = 12 in
To find:
The area of the regular polygon.
Solution:
Number of sides (n) = 6
Let us find the apothem using formula:
where s is side length and n is number of sides.
Area of the regular polygon:
in²
The area of the regular polygon is 374.1 in².