If a roof has a 1 : 3 slope & the roof height is 4 ft, what is the slope length?

Question

The possible answers are; A) 12.65 Ft B) 12.95 ft C) 13.65 ft & D) 14.65 ft I am unable to figure out how to use my construction master 5 calculator, additionally I have not used this math in decades if at all.

Answer 1

roof hite=4 ft & slope=1:3...impli horzontal leng=3*4=12 ft

Slope=diagonal av rit triangel...leng=12 & hite=4,  diagonal=sqrt(4^2 + 12^2)

=sqrt(16+144)=sqrt(160)=12.64911064 ft, or bout 12.65 ft

But maebee yu hav hip roof (go up tu peek, then bak down in bak)

so 2 diagonals=25.3 ft