1) Calculate the perimeter and area of the triangle formed by the coordinates K(?4,?1)K(?4,?1),L(?2,2)L(?2,2), andM(3,?1)M(3,?1). Round your answers to two decimal places.

2) The town of Lakehorn is built on a grid system. Town hall is located downtown at point (0,0). A new school is located 3 miles north and 2 miles east of town hall. Only students who live outside a 5-mile radius from the school are eligible to ride the school bus. Which of the following students are eligible to ride the bus? Select all that apply.

A) Charity lives 1 mile due south of town hall.

B) Thomas lives 3 miles south and 4 miles east of the school.

C) Marinna lives 2 miles north and 3 miles west of the town hall.

D) Kaleb lives 2 miles south and 4 miles east of the town hall.

3) Two students calculated the area of a polygon in the coordinate plane using different strategies. Explain the two methods. Which method do you prefer and why?

\f\f\f\fJ INWACONO -9 -8 -7 -6 -5 -4 -3 -2 -1 01 2 3 4 X in b is N TX ANWACONO 0 2 3 45 6 7 8 9 X -2 -1 ZStudent 1 Student 2 B 2 units B 4 units A 1 unit A 2 units Area of ABCDE C C Area = 36 - 4 - 1 - 1.5 - 2 - 3 -4 3 units Area = 2015 square units -4 -2 6 -2 0 E 4 units Area of ABCDE 2 units Area = 1 + 4+ 4 + 6+ 3+ 15+1 -2 D Area = 20.5 square units 1 unit 3 units 2 units -410 9 D C 8 6 un 4 3 A B 2 1 N 3 4 5 6 7 8 9 10 X