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40 ft.

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Q: What is the perimeter of a regular pentagon with 8 ft sides?
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What is the perimeter of a regular nonagon with a side measuring 21 ft?

189 feet.


A rectangle had an area of 24ft2 what is the length and width of the rectangle with the greatest perimeter?

The rectangle with the smallest perimeter for a given area is the square. The rectangle with the greatestperimeter for a given area can't be specified. The longer and skinnier you make the rectangle, the greater its perimeter will become. No matter how great a perimeter you use to enclose 24 ft2, I can always specify a longer perimeter. Let me point you in that direction with a few examples: 6 ft x 4 ft = 24 ft2, perimeter = 20 ft 8 ft x 3 ft = 24 ft2, perimeter = 22 ft 12 ft x 2 ft = 24 ft2, perimeter = 28 ft 24 ft x 1 ft = 24 ft2, perimeter = 50 ft 48 ft x 6 inches = 24 ft2, perimeter = 97 ft 96 ft x 3 inches = 24 ft2, perimeter = 192.5 ft 288 ft x 1 inch = 24 ft2, perimeter = 576ft 2inches No matter how great a perimeter you find to enclose 24 ft2, I can always specify a rectangle with the same area and a longer perimeter.


What would the perimeter of a 20ft semicircle be?

That depends on what you mean by a "20 ft semicircle".A semi-circle is a half circle.A 20 ft circle could be:A circle of diameter 20 ftThe perimeter of the semicircle is half the circumference plus the diameter → perimeter = 1/2π 20 ft + 20 ft= 10π + 20 ft≈ 51.42 ftA circle of radius 20 ftThe perimeter of the semicircle is half the circumference plus double the radius → perimeter = 1/2 2π 20 ft + 2 x 20 ft= 20π + 40 ft≈ 102.08 ftA circle of circumference 20 ftThe perimeter of the semicircle is half the circumference plus the diameter → perimeter = 1/2 20 ft + 20 ft ÷ π= 10 ft + 20/π ft≈ 16.37 ftHowever, if a 20 ft circle is a circle with a circumference (= perimeter) of 20 ft then a 20 ft semi-circle could be a semicircle with a perimeter of 20 ft→ perimeter = 20 ft


What is the perimeter of a room with an area of 169 square feet?

Yopu can't tell the dimensions from knowing the area.-- The smallest possible perimeter would result from a circular room with diameterof 14 feet 8.03 inches. Then the perimeter is 46feet 1inch .-- If the room has straight sides, then the smallest possible perimeter results froma square room with 13-ft sides. Then the perimeter is 52feet.-- The perimeter can be anything greater than 52 feet. If the room is a rectangle,then the longer and skinnier it is, the greater the perimeter is.10-ft x 16.9-ftArea = 169 square feetPerimeter = 53.8 feet6.5-ft x 26-ftArea = 169 square feetPerimeter = 65 feet5-ft x 33.8-ftArea = 169 square feetPerimeter = 77.6 feet3.25-ft x 52-ftArea = 169 square feetPerimeter = 110.5 feet2-ft x 84.5-ftArea = 169 square feetPerimeter = 173 feet1-ft x 169-ftArea = 169 square feetPerimeter = 340 feet


How do you find the perimeter of 3ft by 5 ft?

16ft..A perimeter is the distance around a shape. So if this is a 3 by 5ft rectangle , considering it has four sides, you add them all up so:3+3+5+5= 16so the perimeter is 16ft

Related questions

What is the perimeter of a regular pentagon with sides that are 3 ft long?

15 ft.


What is the perimeter of a regular pentagon with 8-ft sides?

It is: 5*8 = 40 feet


What is the perimeter of a regular pentagon with a side length of 10 ft?

50 ft


What is perimeter of a pentagon that is 2ft on all sides?

5*2 ft = 10 ft


What is the least possible perimeter with an area of 169 ft?

The shape which minimises the perimeter for a fixed area is a circle. A circle of radius 7.334 ft (approx) will have the required area and a perimeter (circumference) of just 46.084 ft. The quadrilateral with the smallest perimeter will be a square with sides of 13 feet: a perimeter of 4*13 = 52 feet. Any regular polygon with more than 4 sides will have a smaller perimeter, for the same area, than a square.


Find the perimeter of pentagon that has edges of 8 ft 6 ft 4 ft 10 ft and 5 ft?

33 feet


the formula to find the perimeter of pentagon , which has a side length of 921 ft?

d


What is the perimeter of a rhombus with sides that are 4.72 ft long?

That rhombus has a perimeter of 18.88 feet.


What would be the area of a regular polygon with the perimeter of 20 ft and apothem of 3 ft?

Area of regular polygon: 0.5*20*3 = 30 square feet


What is the perimeter of the rectangle 11 ft by 21 ft?

In a rectangle, the opposite sides are equal, so two sides are 11 ft and the other two are 21 ft. To find the perimeter of a rectangle, you only have to add up all sides. So it's 11 + 11 + 21 + 21 = 64 ft


If the lenght of Rebecca's room is increased by 9 ft and the perimeter increased by eighteen ft?

The perimeter is the distance around the room, The reason the perimeter increased by 18 ft is due to both sides of the room that were lengthened by 9 ft.


How do you find the sq ft of a pool?

By adding the perimeter of all of the sides.