What do you mean? 40 inches = 40 inches.
6 inches across
If you mean perimeter length of a 30 inch diameter circle, then it is 30*Pi or 94.248 inches (rounded to 3rd decimal).
6 inches across
63. The inch is a linear measurement, so the adjective is unnecessary.
The area of a 3-inch diameter circle is about 7.068 square inches.
6 inches across
I assume you want the circumference which is pi times the diameter, so for 37 inch diameter the circumference would be about 116.24 inches.
If you mean perimeter length of a 30 inch diameter circle, then it is 30*Pi or 94.248 inches (rounded to 3rd decimal).
6 inches across
Linear inch is a measurement invented by the airlines. Measure your bag's length, width, and height in inches and add the three dimensions together to find how many 'linear' inches it measures.
63. The inch is a linear measurement, so the adjective is unnecessary.
A 4.75-inch diameter circle contains 17.72 square inches.
An inch and a linear inch are the same measurement. A linear inch is merely used to remove confusion between a linear inch, a square inch, and a cubic inch.
19.63 square inches are in the area of a 5-inch diameter circle.
The area of a 3-inch diameter circle is about 7.068 square inches.
A circle with an 8-inch diameter has a perimeter of 25.1 inches.
Would that be 60 inches across for a 60 inch diameter?