Any geometry experts on here?

[12poundbass]

So son comes out and asks for help with his math. After looking at the paper and picking up the pieces of my exploded head ? I found a video on YouTube how to find the area of a trapezoid and (re)learned how to do the ones I have circled. How do you do the ones I don’t have circled? My brain is on overload. I can’t seem to find a video for them.

 

 

 

[J Francho]

The general idea is to slice off right triangle and determine the dimensions of those. Then determine the dimensions of the rectangle left behind. Those areas are easy to figure. Then just add them up. 

[Tennessee Boy]

Have you ever used Khan Academy?  They have good videos and quizzes on everything from preschool math to differential equations.  This section may have everything you need.
 

https://www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter

 

 

[Deleted account]

The circumference of a circle is always pi if you manipulate the units...

[VolFan]

Base + base times height then divide by two for 8 and 9 if I remember right. Basically those shapes equate to a rectangle with the height given and the avg of the top and bottom for the other sides. 

 

12 and 13 are base times height, just like a square. Parallelograms are parallelograms 

 

 

[12poundbass]

35 minutes ago, VolFan said:

Base + base times height then divide by two for 8 and 9 if I remember right. Basically those shapes equate to a rectangle with the height given and the avg of the top and bottom for the other sides. 

 

12 and 13 are base times height, just like a square. Parallelograms are parallelograms 

 

 

Those ones I was able to figure out. It’s 6,15,16 that has me scratching my head. 

[12poundbass]

Got it figured out guys. Thanks for the help and the links! 

[slonezp]

The answer is 3

[J Francho]

39 minutes ago, slonezp said:

The answer is 3

The answer is always 42.

[12poundbass]

6 hours ago, J Francho said:

The answer is always 42.

 

7 hours ago, slonezp said:

The answer is 3

Since everything on the internet is true and you both seem genuine I’ll combine your answers and go with 45. Lookout Harvard, here comes 6poundbass!!!

 

 

[Way north bass guy]

You’re probably just all confused because you guys aren’t used to that little cm sign beside the number ? ??

[flyfisher]

1 minute ago, Way north bass guy said:

You’re probably just all confused because you guys aren’t used to that little cm sign beside the number ? ??

best comment on the thread....

[Will Ketchum]

Pi are not square. Pi are round.

[Darth-Baiter]

i got three pages of equations going.  i also got 42ish.  

[fishwizzard]

 

I am a geometry cheater.  

[Deleted account]

3 hours ago, Way north bass guy said:

You’re probably just all confused because you guys aren’t used to that little cm sign beside the number ? ??

Cubic miles, right?...

12 hours ago, slonezp said:

The answer is 3

"When in doubt, Charlie out" Real test taking advise at most Navy advancement exams.