On a bicycle trail, the city is painting arrows like the one shown below:

Upper pointing arrow with height of 15 and length of 13. Rectangular base of arrow has length of 11 and height of 12. All units are in centimeters.

Calculate the area of the arrow by decomposing it into rectangles and triangles.

148.5 square centimeters
151.5 square centimeters
171 square centimeters
195 square centimeters

Question

On a bicycle trail, the city is painting arrows like the one shown below: 

Upper pointing arrow with height of 15 and length of 13. Rectangular base of arrow has length of 11 and height of 12. All units are in centimeters. 

Calculate the area of the arrow by decomposing it into rectangles and triangles.

 148.5 square centimeters
 151.5 square centimeters
 171 square centimeters
 195 square centimeters

anonymous · Answer

attachment

anonymous · Answer

@iGreen. @iambatman @Legends @TheSmartOne

anonymous · Answer

Hey @PoppyGirl63 , you got this handled? ^^

anonymous · Answer

Sadly, no. I'm confused on it. That's why I didn't close it yet, so I was hoping someone would help. But thanks for asking. ^^ @Supreme_Kurt

anonymous · Answer

Just say the word :3

anonymous · Answer

Okay, can you help me on this math problem? xD @Supreme_Kurt

anonymous · Answer

looks like you didn't expect it of me lol.  Hang on while I see if I can help you on my original account. Stand by :D

anonymous · Answer

okay x3

anonymous · Answer

I guess not.  My original account is so slow :(

Anyway, that shouldn't worry us :D

Do  you know how to find the area of a triangle? ^^

anonymous · Answer

Yeah, I do. You just have to multiply the base and height, and divide it by two...right? It was in my notes, so I might've messed up >.< @Supreme_Kurt

anonymous · Answer

You can just call me Kurt ^^.

And that's good.
While this arrow thing might be a little complicated, it's really nothing more than a triangle attached to a rectangle! :D

|dw:1423493691031:dw|
 
(pardon my drawing skills [or lack thereof] )

:D

anonymous · Answer

so to get the area of this arrow, just get the area of the triangle, then the rectangle, then add them up.

simple enough?

ready to get started? :D

anonymous · Answer

Oh, yeah simple :D Okay, let's start!

anonymous · Answer

Want the easy bit first or the easier bit? haha

Let's start with the triangle.
We know that to get the area, you need its base and height.  And that's really the only tricky part, finding out what the heck the base and height are, and from there, it's smooth sailing.

|dw:1423493900512:dw|

focus on the triangle...

anonymous · Answer

Now, let's add in the measurements...|dw:1423493982786:dw|

What's the length of the base of the triangle?

anonymous · Answer

13, right

anonymous · Answer

THIS length, to be exact:|dw:1423494044420:dw|