# Chapter 8 - Geometry - 8.4 Parallelograms and Trapezoids - 8.4 Exercises - Page 559: 17

Area = 4275 ft$^{2}$ Cost = $1410.75 #### Work Step by Step We must first find the area of the lawn. Area of a Trapezoid:$A$=$\frac{1}{2}h$($b$+$B$) Therefore: Area =$AA$=$\frac{1}{2}$(45 ft)(80 ft + 110 ft)$A$=$\frac{1}{2}$(45 ft)(190 ft)$A$=$\frac{1}{2}$(8550 ft)$A$= 4275 ft$^{2}$Area = 4275 ft$^{2}$Now we must multiply by the cost per square foot. Therefore: Cost =$CC$= (4275)(0.33)$C$=$1410.75 Cost = \$1410.75

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.