Area and Perimeter in the Coordinate Plane

A = 1/2bh

• area of a rectangle

• perimeter of a triangle

• area of a triangle

• perimeter of a rectangle

Find the perimeter of the polygon shown.

• 8

• 12

• 16

• 20

Find the perimeter of this triangle.

• 150 ft

• 100 ft

• 20 ft

• 35 ft

Find the perimeter of the triangle, rounded to the nearest tenth

• 13.3

• 18.5

• 22.6

• 24.3

What is the area of the quadrilateral with vertices at (-1, 0), (2, 0), (2, 5), and (-1, 5)?

• 15 square units

• 12 square units

• 10 square units

• 5 square units

What is the area of the triangle?

• 7.5 units²

• 10 units²

• 12.5 units²

• 15 units²

What is the perimeter of the parallelogram? (Round to the nearest tenth)

• 16.3

• 18

• 18.3

• 18.9

What is the area of the parallelogram?

• 18 units²

• 20 units²

• 24 units²

• 30 units²

Find the area of the quadrilateral on the coordinate plane

• 10 sq. units

• 6 sq. units 

• 8 sq. units

• 12 sq. units

You design a tree house using a coordinate plane. You plot the vertices of the floor at J (2, 1), K (2, 8), L(9, 8), and M (9, 1). The coordinates are measured in feet. What is the area of the tree house?

• 28 feet²

• 49 feet²

• 56 feet²

• 64 feet²