A is 7 4 and 3..B is the same...This is my first time with this kind of problem....
Answer:
Sam is right. shape A which is cylinder has uniform cross section.
Explanation:
what is uniform cross section?
uniform cross section is when cut through an object and the bases are similar.
solution:
For cylinder:
when we cut a cylinder, its in a circle shaped and have similar bases - thus have uniform cross section.
For pyramid:
when we cut a pyramid it is in rectangle shape and this changes as we go up or down the pyramid and does not have uniform cross section.
Answer:
radius = 13
Step-by-step explanation:
Look at the attached picture below. We can calculate radius with the help of the Pythagorean theorem. But first we have to find out the values of the two legs.
First let's find the shorter leg.
<u>Equidistant Chords Theorem</u>
Two chords are congruent if they are equidistant from the center.
Chords in the picture are congruent and that means that the distance from the center to each of them is the same!
Let's calculate the distance. But to get the distance we have to find x first.
Since the distances are the same:

Therefore:

Let's focus on the longer leg. Since part of the radius is perpendicular to the chord, it actually bisects the chord! That means that the long leg is going to be a half of the length of the chord.
Therefore:

All that is left is the Pythagorean Theorem in the right triangle.
<u>Pythagorean Theorem</u>

Hypotenuse in our case is the radius.

The last one is correct because a prism is length * width * hight
The answer would be 168 minutes.