I don't understand this quadratic functions question please help.

Which expression gives the area of the triangle shown below

Theo found the driving distance from glacier national park to yellowstone park to be 448 miles. theo used a map that had a ratio of 5cm/300mi. how many centimeters is the distance on the map? round to the nearest unit if necessary. 4 centimeters 7 centimeters 64 centimeters 90 centimeters

Which triangle is △abc similar to and why? △abc is similar to △ghi by aa similarity postulate . △abc is similar to △jkl by aa similarity postulate . △abc is similar to △def by aa similarity postulate . △abc is not similar to any of the triangles given.