SOLUTION: how would find the surface area of a roof it it looked like this...( triangle with right angle in center) ..../..|..\ .../...|...\ ../....|.....\ ./.....|.......\ /____|

Algebra ->  Surface-area -> SOLUTION: how would find the surface area of a roof it it looked like this...( triangle with right angle in center) ..../..|..\ .../...|...\ ../....|.....\ ./.....|.......\ /____|      Log On


   



Question 609851: how would find the surface area of a roof it it looked like this...( triangle with right angle in center)


..../..|..\
.../...|...\
../....|.....\
./.....|.......\
/____|____\ with it being a right angle in the middle
what i know is that you need to find all of the sides, but not the bottom... im not sure if this is the net, or if its a square on the bottom

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The area of a triangle is +%281%2F2%29%2Ab%2Ah+
Call the horizontal part of the roof +2b+
The vertical line from the center of 2b
to the top of the roof is +h+.
So, the area of the roof is the sum
+%281%2F2%29%2Ab%2Ah+%2B+%281%2F2%29%2Ab%2Ah+=+b%2Ah+
Remember that +b+ is 1/2 of the
horizontal part of the roof because I
said the whole horizontal part was +2b+