Answer:
Step-by-step explanation:
1) Convert 
to improper fraction. Use this rule: 
.
2) Simplify 4 * 3 to 12.
3) Simplify 12 + 1 to 13.
4) Convert 
to improper fraction. Use this rule: .
5) Simplify 1 * 3 to 3.
6) Simplify 3 + 2 to 5.
7) Join the denominators.
8) Simplify.
9) Convert to mixed fraction.
(Decimal Form: 2.666667)
Thank you,
Eddie
One thing to pay close attention to is that, AB is a segment whose length is 12 cm, now we're not referring to the arcAB, but to the straight-line going from A to B, the segment AB, as you can see in the picture below in green.
now, the segments OA and OB are radius of the circle and therefore twins, and since they're twin sides, they make up twin angles on the other end, the green end.
if those angles at A and B are twins, the only possible values for them is 60°, what the dickens does all that mean?
well, it means the triangle AOB is an equilateral triangle, and if AB is 12, then OA and OB are also twelve, thus we know the radius of the circle is 12.
now, that is the circumference of that circle, and since we only need to know what arcAB is, and since arcAB is 1/6 of the circle, then 1/6 of that circumference is 24π/6.
Not necessarily. For example, you can have a rectangle whose dimensions are 12 and 6. Length is 12 and 6 is the width.
The area (length × width) of the rectangle will be 72.
The perimeter of the rectangle (2l + 2w) will be 36.
So, in this case, the area was double the perimeter and the perimeter was not greater than the area of the shape.
