Jordan and Missy are standing together in a schoolyard. Jordan, who is 6 feet tall, casts a shadow that is 54 inches long. At the same time, Missy casts a shadow that is 45 inches long. How tall is Missy?

You have 2 similar triangles, so use ratios

6 feet/54 inches = h feet/45 inches

54h feetinches = 270 feetinches

h = 270/54

= 5

Missy is 5 feet tall.

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.