How tall is the giraffe?

Question

How tall is a giraffe that cast a shadow 320 centimeters long, when randy, who is measuring the giraffe, is 180 centimeters tall and cast a shadow of 100 centimeters long?

Answer 1

giraffe height / randy height = giraffe shadow / randy shadow

 

x/180 = 320/100

x/180 = 3.2

x = 3.2(180)

x= 5765.

 

The giraffe is 576 cm tall, or 5.76 meters, or 18.89 feet.