How is the height of the triangle in the example found /BC is selected as the base

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5