Answer:
L = 14/[tex]\sqrt2}[/tex] OR 9.899
Step-by-step explanation:
cos(angle) = adjacent/ hypotenuse
hypotenuse = length of ladder
adjacent = 7 feet
length of ladder = L
1/L = cos(45)/7
L = 7/cos(45)
MAKE SURE CALCULATOR IS IN DEGREE MODE
L = 7/([tex]\sqrt{2}[/tex]/2)
L = 14/[tex]\sqrt{2}[/tex]
