7.4 m
The irregular shape can be broken into a triangle and a
rectangle as shown. Which expression could be used
to determine its area?
(10)(4.2) + (0.5)(10)(3.2)
(0.5)(10)(4.2) + (10)(3.2)
(0.5)(10)(7.4) + (10)(3.2)
(10)(7.4) + (0.5)(10)(3.2)