The circumference of a circle is 53.38 centimeters. what is the area in square centimeters? use 3.14 for /pi

The circumference of a circle is given by  where C is the circumference and d is the length of the diameter.

We are told the circumference is 53.38 and to use 3.14 for pi. Substituting these into the equation above we get: . Dividing 53.38 by 3.14 will give us the diameter which is approximately 18.5923.

The diameter is the distance from, a point on the circle through the center and to another point on the circle. It is twice the radius. So if we divide 18.5923 by 2 we get the radius which is 9.29617.

The area of a circle is given by . Since we have the radius we can substitute into the equation to obtain 

That is, the area is approximately 271.35 square centimeters.

I am not sure how many decimal places you have been asked to round to, but since you did 2 for the digits of pi, I went with two in the answer. Note that along the way you need to carry it out to more than two to avoid something called rounding error.

4pounds of live bait and 1 pound of natural bait

Answer: question no. 1 -a. yes, the sides are in the ratio 2 : 5.question no. 2 -b. 59°question no. 3 -c. angles x and y are remote interior angles.question no. 4 -d. 90°, 45° and 45°question no. 5 -b. mn and qrstep-by-step explanation: question no. 1 -rs : xu = 3 : 7.5 = 2 : 5rt : x? = 6.4 : 16 = 2 : 5st : u? = 6 : 15 = 2 : 5as the ratios of all sides are equivalent, the triangles must be congruent and the sides must be proportional.therefore, the answer is: a. yes, the sides are in the ratio 2 : 5.question no. 2 -in the second diagram, angle b is the only letter not shown. therefore, the number must be equivalent to angle b.if we substitute the value of angle b as being 22° in the first diagram, we can now use the angle sum of a triangle to obtain the value of angle a.angle sum of a triangle = 180°therefore: let angle a = aa + 99 + 22 = 180a = 180 - 99 - 22a = 59°therefore, the answer is: b. 59°question no. 3 -angles x and y don't share the vertex of the triangle with the exterior angle w. remote interior angles don't share a vertex of a triangle with an exterior angle. this means that angles x and y are remote interior angles.therefore, the answer is: c. angles x and y are remote interior angles.question no. 4 -the sum of all interior angles of a triangle must be equivalent to 180°.90°, 45° and 45° are the only set of angle measures that are equivalent to 180°.therefore, the answer is: d. 90°, 45° and 45°question no. 5 -the only pair of sides stated in the options which are corresponding are mn and qr.therefore, the answer is: b. mn and qr.