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
you would add the topp and the side then times it by two i think
For a rectanglar picture, measure the length and width of the space where the picture will fit inside the frame and multiply the two measurements together to obtain the area. Example: 7 inches x 9 inches = 63 square inches. For a circular picture, measure the diameter of the space where the picture will fit inside the frame then multiply the radius (half the diameter) by itself and by pi (3.14). Example: for 6 inch diameter, 3.14 x 3 inch x 3 inch = 28.26 square inches.
Find the area of an equilateral triangle that has a perimeter of 21 inches. Round the answer to one decimal place.
To find the perimeter of a triangle, add the three sides. Perimeter = 6in + 8in + 10in = 24in.
88/4=22
Perimeter = 100 inches Area = 600 square inches
It is: 9+11+9+11 = 40 inches
you would add the topp and the side then times it by two i think
4 inches x 3 sides = 12 inches for the perimeter.
Perimeter = 12+12+7+7 = 38 inches
For a rectanglar picture, measure the length and width of the space where the picture will fit inside the frame and multiply the two measurements together to obtain the area. Example: 7 inches x 9 inches = 63 square inches. For a circular picture, measure the diameter of the space where the picture will fit inside the frame then multiply the radius (half the diameter) by itself and by pi (3.14). Example: for 6 inch diameter, 3.14 x 3 inch x 3 inch = 28.26 square inches.
The frame is 1 cm wide.
34 inches
You can find glass for a picture frame at most craft stores, framing shops, or online retailers that specialize in framing supplies.
look it up
The frame is 14 cm wide
Find the area of an equilateral triangle that has a perimeter of 21 inches. Round the answer to one decimal place.