Answer:
21 ft
Step-by-step explanation:
From the diagram attached ,
sinθ = opposite/Hypotenus
sin73° = h/22
Where h is the height from where the ladder touches the building
make h the subejct of the equation
h = 22sin73°
h = 22(0.956)
h = 21.03
h = 21 ft (to the nearest foot)
