Question

نما

A girl 164 cm tall stands 366 cm from a lamp post at night. Her shadow from the light is 83 cm long. How high is the lamp post?

Answer 1

Explanation:

person height/shadow length = lamp height / shadow length lamp

Person height = 164 cm

shadow length = 83

lamp height = x

lamp shadow length = 366 + 83 = 449

164/83 = x/449 Cross Multiiply

83x = 164 * 449 Combine Right

83x = 73636 Divide by 83

x = 73636/83

x = 887.18