Answer:
- For semicircle examples, skip to section 1
- For parallelogram examples, skip to section 2
To find the perimeter of a parallelogram, use the formula, 2(a+b)
To find a semicircle perimeter, use the formula of (π × r) + (2 × r)
<em>note that without any specified values for the shapes, you cannot properly find a value.</em>
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1.
So let's say I have a bowl that is ironically shaped like a semicircle, and its radius is 6 units.
- What we know is that the semicircle has a radius of 8 units, and what we must find is the perimeter.
- So let's solve.
Use the formula from earlier.(Using 3.14 for pi)
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2.
And let's say I have a new origami shape that contains a figure similar to a parallelogram. We want to find it's perimeter. What is the first step?
- The first step is using the parallelogram perimeter formula as listed below and above.
Where <em>a</em> is the side and <em>b</em> is the base.
- And let's also say this figure has a base of 7 and a side of... let's say a side length of 9
- Now that we have values, use the formula to solve.
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If you have any questions, please reach out via the comments. I hope this helps, and have a great day!