4 inches x 4 inches = 16 square inches
This is possible because you add perimiters but multiply areas. Consider a 2 x 4 rectangle and a 1 x 5 rectangle. The first has a perimeter of 12 (2+2+4+4), and an area of 8 (2 x 4). The second rectangle has a perimeter of 12 also (1+1+5+5), but an area of 5 (5 x 1). The closer a rectangle is to a perfect square, the larger the area will be, because a square maximizes area. A 3 x 3 square also has a perimeter of 12, but an area of 9. Heres another way to think about it: a rectangle that is one inch tall and 100 inches wide would have a perimeter of 202 inches, and an area of 100 square inches. If you added one inch to the side so that it was 101 inches wide, you would add 2 inches to the perimeter, but only one square inch to the area. However, if you made it one inch taller, you would still add 2 inches to the perimeter, but you would DOUBLE the area to 200 square inches.
It is 18 times 18 = 324 square feet
Total surface area of a cylinder = 2πr(h + r)SA = 2(3.14159 x 6) x (72 + 6)SA = 37.7 x 78SA = 2940.6 square inches or 20.42 square feet
First, we want to look at the base to find its area. A right triangle with a hypotenuse of 10 inches and a leg of 8 inches has its other leg at 6 inches by the Pythagorean Theorem. Now we have both legs of the right triangle, so using the formula for area of a triangle, A=bh/2, we get an area of 24 square inches. Now, the volume of a pyramid is Bh/3, so 24*10/3=80 cubic inches.
101 inches is 8 feet 5 inches
Multiply the lengths of two sides of the square. If a square is 5 inches tall and 5 inches long, the area of the square us 25 Inches Squared.
384 inches squared
You multiply the length by the height and divide by the number of square inches in a square foot. . . . . . . . . . . . . . 215 * 96 / 144 = 143 1/3
60 cubic inches with a surface area of 94 square inches
15 in x 5 in = 75 in2 75 square inches
624 cubic feet
(4*pi*5)+(2*pi*22) = 87.9645943 square inches or 88 square inches correct to two significant figures
6.36 inches wide.
It is 5.92 inches.
106 pi inches squared
This rack measures up at 41" inches tall and has a maximum weight capacity of 270 lbs.
Actually you measure the length and then the width of the room then you multiply the two ... not enough information in your question, it's like me asking you how tall my friend is if he were 6 inches taller than me. assuming your room is square or rectangle, you need the measurement from two different walls to get the square footage.