Answer:
the height of the flag = 12cm
Step-by-step explanation:
inclide ladder length = 15m (hypotenuse)
distance between ladder foot and flag foot= 9m (base)
according to Pythagoras theorem,
(h)^2 = (p)^2 + (b)^2
(15)^2 = (p)^2 + (9)^2
(p)^2 = (15)^2 - (9)^2
(p)^2 = 225-81
p = √144
p= 12 cm
