103 of them.
55 inches
There is one equilateral triangle with 3 equal sides of 7in
79"
There are 151 of them.
1ft and 7in
there are twelve inches to a foot, and there are 2.54 centimeter to an inch. Now you do the math.
If you mean 56 inches then it is bigger than 4ft 7in by 1 inch
835.66 square inches.
No. As there are 12 inches in a foot, 4ft 7in is 55 inches, so it is 1 less than 56 inches.
1 ft = 12 in so 2*12 + 7 = 24 + 7 = 31 inches.
A cylinder with a radius of 7in and a length of 3in has a total surface area of about 439.82 square inches.