4.3 Area Review

Formulas

100

Formula for the parallelogram

Base times height

200

Formula for area of a triangle

1/2BxH or BxH divided by 2

300

Formula for area of a rectangle

BxH

400

Formula for area of a trapezoid

1/2h(b1+b2)

Parallelograms

100

Find the area when the... Base= 12in. Height=9in.

What is 108in. squared

200

Find the area when the... Base= 14ft. Height=19ft. 

What is 266 ft. squared

300

Find the area when the... Base= 5in Height=7in

35 inches squared

400

Find the area when then the... Base= 8km Height=9km

72 kilometers squared

Triangles

100

Find the area when then the... Base= 7in Height=12in

42 inches squared

200

Find the area when then the... Base= 3ft. Height=7ft

10.5 ft. squared

300

Find the area when then the... Base= 8cm Height=10cm

What is 40cm squared

400

Find the area when then the... Base= 12ft.  Height=24ft

144 ft. squared

Rectangles

100

Find the area when then the... Length= 4in. Width=6in

 24 inches squared

200

Find the area when then the... Length= 11cm Width=6cm

66 cm squared

300

Find the area when then the... Length= 12cm Width=4cm

48cm squared

400

Find the area when then the... Length= 21ft Width=12ft

252ft. squared