The circle and rectangle, with radius and side lengths shown, have the same area. knowing this, which is a possible way to find the area of a circle? a. multiply the circumference by the diameter. b. multiply the circumference by half the radius. c. multiply twice the circumference by the diameter. d. multiply twice the circumference by half the radius.

B

Step-by-step explanation:

The point to this question is that the rectangle and the circle have the same area.

The circumference of a circle is 2*pi*r. You want to wind up with pi r^2

Area = (2 *  pi * r)  * (r/2) is what the rectangle tells you to do.

Area = Circumference * r/2 which is B. No other answer will give you this result.

Answer

yes. we do proportions in probabilities.

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.