The figure below shows the cross section of the scale model of a roof of a house. PQR is a right triangle with the right angle at R. RS is the altitude that connects R to PQ. The length of SQ is 13 inches, and the length of PQ is 20 inches. What is the length of the height RS of the roof rounded to the nearest tenth?
A. 9.5 inches
B.16.5 inches
C.16.1 inches
D. 45.5 inches

Question

The figure below shows the cross section of the scale model of a roof of a house.   PQR is a right triangle with the right angle at R. RS is the altitude that connects R to PQ. The length of SQ is 13 inches, and the length of PQ is 20 inches.  What is the length of the height RS of the roof rounded to the nearest tenth?  
A. 9.5 inches 
 B.16.5 inches   
C.16.1 inches  
D. 45.5 inches

anonymous · Answer

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0300_Subtest_05_19/image0014e1c8c4f.jpg

anonymous · Answer

plz help

anonymous · Answer

so does that mean RS is 13???

anonymous · Answer

I apologize i read that wrong one second let me retype what you have to do

anonymous · Answer

okay

anonymous · Answer

@terenzreignz

anonymous · Answer

TBH i don't remember how to do these >.< Sorry man maybe my friend can help

terenzreignz · Answer

This takes a little thing called triangle similarity... in fact, these two right triangles are similar  :)

anonymous · Answer

@Jdina97  no prob thanx for trying :)
@terenzreignz nd that means??

terenzreignz · Answer

That means that their dimensions are just multiples of each other.