23mm= 0.905511811023622 inches23mm = 0.90551181of an inch
23mm= 0.905511811023622 inches23mm = 0.90551181of an inch
0.9055 in.
23mm
23mm
23 millimeters is 0.91 inches.
You would find the area of the inside and outside shape (pretending that the inside shape was not in the outside shape). then, you would take the area of the outside shape and subtract the area of the inside shape.
In the phrase 'area of a shape', both area and shape are nouns. In your mind, add 'the', it helps to show that they are nouns: 'the area of the shape'.
Technically, there are an infinite number of ways to do it. Probably the easiest way is to draw a rectangle that's 1mm wide and 23mm long. When you finish doing that, you might feel like you've accomplished something important. But you haven't. The plain truth is that nobody needs a picture of a shape with an area of 23 mm2. The reason you were assigned to draw it was because that's a fine way for you to learn how the dimensions of a shape and the area of the shape all work together. But you went and got somebody to do everything for you except the ruler and pencil part, so all you have is this drawing of a long skinny rectangle, and you still haven't learned anything about the math part. That's too bad.
First find the radius by dividing 23 by 2*pi which works out as 3.660563691 Surface area of the sphere = 4*pi*3.6605636912 = 168.3859298 or about 168 square mm
right
23mm is about 9/10 of an inch. That's about halfway between 7/8 and 15/16