Describe the rays of an angle that measures 1/2 turn

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

Need on this geometry question. explain how you did it.