Answer:
Step-by-step explanation:
Let x is the length of the square side.
We know: the two figures have the same area
<=> = π (r being radius)
<=> x = r
perimeter square = 4x = 4*r*
perimeter circle = 2*r*π
<=> 390 = 4*r* + 2*r*π
<=> r = 29.16
=> perimeter square = 4*29.16*π
=> perimeter circle = 58.32π
Answer:
272ft^2
Step-by-step explanation:
because when you create an imaginary line extending from where the 8ft length is, you get 2 rectangles to figure out which makes the measurements of the top one 18ft by 9ft which you would multiply for the area of that rectangle the bottom one is 10ft by 11ft which u multiply those to get that area, and after figuring those out you get 2 areas to add to each other. which is 162+110=272ft^2
<h3>
Answer: Choice A) circle</h3>
Explanation:
Imagine that white rectangle as a blade that cuts the cylinder as the diagram shows. If you pull the top cylinder off and examine the bottom of that upper piece, then you'll see a circle forms. It's congruent to the circular face of the original cylinder. This is because the cutting plane is parallel to both base faces of the cylinder. Any sort of tilt will make an ellipse form. Keep in mind that any circle is an ellipse, but not vice versa.
Another example of a cross section: cut an orange along its center and notice that a circle (more or less) forms showing the inner part of the orange.
Yet another example of a cross section: Imagine an egyptian pyramid cut from the top most point on downward such that you vertically slice it in half. If you pull away one half, you should see a triangular cross section forms.
Answer:
infinite solutions
Step-by-step explanation:
note the expression inside the radical is a perfect square, that is
x² - 14x + 49 = (x - 7)², then
= x - 7
= x- 7, that is
x - 7 = x - 7
Since both sides are the same then any value of x will make the equation true.
The equation has infinite solutions