Marie forgot the formula for finding the area of a circle, so she divided the circle into sectors and created a parallelogram-shaped figure. What should she use as the height of the figure?
A.the radius
B.360
C.12 of the circumference
D.the circumference
Can someone please help me with this im struggling with it.
I think its the radius
because if you take the radius and multiply it by 2 then you get your diameter which I think would work as the height
To determine the height of the parallelogram-shaped figure created by dividing a circle into sectors, Marie should use the radius.
The formula for finding the area of a parallelogram is base multiplied by height. In this case, the base of the parallelogram is the length of the sector's arc, which is equal to the circumference of the circle. Therefore, the height of the parallelogram should be the radius.
Therefore, the correct answer is A. the radius.
To find the height of the figure created by dividing a circle into sectors, Marie can use the following steps:
1. Recall that the formula for finding the area of a circle is A = πr^2, where A is the area and r is the radius.
2. Consider the figure that Marie has created by dividing the circle into sectors and creating a parallelogram shape.
3. In a circle, the radius is the distance from the center of the circle to any point on its circumference. Therefore, the height of the parallelogram-shaped figure should be equal to the radius of the circle.
Therefore, in this case, Marie should use the radius (option A) as the height of the figure.