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Aleks [24]
2 years ago
5

Find the perimeter of a parallelogram and one semicircle

Mathematics
1 answer:
ch4aika [34]2 years ago
7 0

Answer:

  1. For semicircle examples, skip to section 1
  2. 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>

__________

1. \sf Semicircles

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)

(\pi *r)+(2*r)

=\pi * r(8) + 2 * r(8) = 41.12

__________

2. \sf Parallelograms

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.

2(a+b)

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.

2*(7+9) = 32

__________

\sf Questions

If you have any questions, please reach out via the comments. I hope this helps, and have a great day!

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Answer:

  • x - 4y = 22

Step-by-step explanation:

<u>Given line:</u>

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<u>Convert the equation into slope-intercept form:</u>

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Parallel lines have equal slopes.

<u>Find the parallel line lines that passes through the point (2, - 5):</u>

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<u>Substitute x and y values to work out the value of b:</u>

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Richard and Teo have a combined age of 26 . Richard is5 years older than twice​ Teo's age. How old are Richard and​ Teo?
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Answer:Teo's age = 7 years ,Richard's age = 19 years

Step-by-step explanation:

Step 1

Let Teo's age be represented as x

Such that Richard 's age = 5 + 2x

and their combined ages equaling 26 can be expressed as

x + 5+ 2x = 26

Step 2 --- SOLVING

x + 5+ 2x = 26

3x+ 5= 26

3x= 26-5

3x= 21

x = 21/3

x = 7

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Richard's age = 5+2x= 5 + 14= 19 years

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