   Chapter 8.1, Problem 25E Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

The exterior wall (the gabled end of the house shown) remains to be painted.a) What is the area of the outside wall?b) If each gallon of paint covers approximately 105  ft 2 , how many gallons of paint must be purchased?c) If each gallon of paint is on sale for $22.50, what is the total cost of the paint? To determine a) The area of the outside wall. Explanation 1) Procedure: Finding the area of the figure is followed by identifying the figure and find area with the suitable geometry formulae. 2) Calculation: Given, In a given figure, the wall is a compound figure of triangle and rectangle. Area of the wall A=(A1) Area of a rectangular wall+(A2)Area of a triangular wall Where, Length of rectangle l=24 ft Width of rectangle w=10 ft Base of the triangle b=24 ft Height of the triangle h=(1510) ft h=5 ft. Area of a rectangular wall (A1)=lw unit2 To determine b) The gallons of paint must be purchased if each gallon of paint covers 105 ft2. To determine c) The total cost of paint, if each gallon of paint is on sale for$22.50

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