3) The heights of two flagpoles are \( 20 \) feet and \( 30 \) feet. If the shorter pole casts a shadow of \( 8 \) feet, how long is the taller pole's shadow?
4) Mark wants to cut a triangular patch to make an emblem. The pattern for the emblem is a triangle with sides of \( 8,8 , \) and \( 10 cm \) . If Mark wants to make the longest side of the emblem \( 25 \)\( cm \) , how long should the other sides be?
5) On a map, the length from Cleveland to New York is \( 7 cm \) , from Cleveland to Atlanta is \( 10 cm \) , and from New York to Atlanta is \( 13 cm \) . If on a larger map the length from Cleveland to New York is \( 17.5 cm \) , what is the distance from Cleveland to Atlanta?