It is: 9+11+9+11 = 40 inches
Perimeter = 100 inches Area = 600 square inches
perimeter is the sum of all side lengths. Since a 9 by 11 has 2 sides 9 inch and 2 sides 11 inch, perimeter is 9+9+11+11 = 40 inches
4 inches x 3 sides = 12 inches for the perimeter.
Perimeter = 12+12+7+7 = 38 inches
To find the perimeter of a triangle, you sum the lengths of all its sides. If each side of the triangle is 0.75 inches, and there are three sides, the calculation is 0.75 inches + 0.75 inches + 0.75 inches, which equals 2.25 inches. Therefore, the perimeter of the triangle is 2.25 inches.
34 inches
To find the perimeter of a poster, you need to know its length and width. The perimeter is calculated by the formula: P = 2(length + width). For example, if a poster measures 24 inches by 36 inches, the perimeter would be 2(24 + 36) = 120 inches.
Find the area of an equilateral triangle that has a perimeter of 21 inches. Round the answer to one decimal place.
For any perimeter, the rectangle with the greatest area is a square.For a 16-inch perimeter, the greatest rectangular area is 16 square inches,inside a square with 4-inch sides.But if you don't necessarily need straight sides, then you can squeeze more areainside the same perimeter with a circle. A circle with a 16-inch circumference has anarea of 20.372 square inches.
To find the perimeter you just add up the sides. So it would be 24 inches.
for area you times the two numbers and for perimeter you add the numbers
the perimeter is 3 times as long as the diameter Example: if my diameter is 7 inches long my perimeter is 3 times as much so it is 21 inches long