Question

The glass for a window is 7.5 feet wide. About how high must a doorway be in order for a contractor to get the glass through the door if the doorway is 3 feet wide?

Answer 1

if the diagonal of doorway is 7.5 it will get through

--> (7.5)^2 = h^2 + 3^2
solve for h

Answer 2

so you would use the pythagorean Th?

Answer 3

≈ 6.87 ft

Answer 4

How would you go about solving it?

Answer 5

get h by itself

h^2 = (7.5)^2 - 3^2
take square root
h = sqrt(7.5^2 - 3^2)