# Chapter 10 - Area - 10-1 Areas of Parallelograms and Triangles - Practice and Problem-Solving Exercises - Page 620: 28

27 $units^{2}$

#### Work Step by Step

Count the units between A and D to find the base. Count the units from the base, AD, to point F to find the height. A=bh A=9(3) A=27

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