Answer:
15 sides
Step-by-step explanation:
Interior angle = {n - 2}{180/n}
156 = {n - 2}{180/n}
Cross multiply
156n = {n - 2}180
156n = 180n - 360
180n - 156n = 360
24n = 360
n = 369/24
n = 15
Answer: 4 units.
Step-by-step explanation:
Once each point is plotted, you get the rectangle attached.
You can observe in the figure that the base of the rectangle is its longer side.
Since the length of the base of the rectangle goes from 
to 
, you can say that the lenght of the base is the difference between 3 and -1.
So, you need to subtract this two coordinates, getting that the lenght of the base of the rectangle attached is:
Answer: 84 m
Step-by-step explanation:
To find area, you multiply the width by the length ( A = L x W). Here, it is asking for the length, giving the area of the pool and the width. With this information, you can inverse operation ( division) to find the length of the pool. So:
5628 / 67 = 84
This tells us that the length of the pool is 87 meters. To check this answer, multiply 67 and 84. If it's equivalent to 5628, the given area, then 84 is indeed the length of the pool.
67 x 84 = 5628.
Thus, the length of the pool is 84 m.
The number is fairly easy to come across. The first thing that I see is that there are 45 students at the camp. This means, based on the clues given to me, that the number of 6th graders is odd. Because the number of 6th graders is half the number of 7th graders, and 8th grade equals 7th grade, that you have to use an even number less than 20, but more than ten.This leaves the numbers 14 and 18. Now we use trial and error. Half of 14 is 7. 14+14=28
28+7=35
35≠45
Half of 18 is 9.
18+18=36
36+9=45
45=45
So the answer is as follows:
6th grade: 9
7th grade: 18
8th grade: 18
