45. A painter needs to find the area of the gable end of a house.          What is the area of the gable if it is a triangle with two sides of          42.0 ft that meet at a 105° angle?         A. 852 ft2                                          C. 863 ft2                     B. 847 ft2                                          D. 798 ft2

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter8: Areas Of Polygons And Circles
Section8.3: Regular Polygons And Area
Problem 14E: Find the area of an equilateral triangle with apothem a = 3.2 cm and perimeter P=19.23 cm.
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45. A painter needs to find the area of the gable end of a house.  
       What is the area of the gable if it is a triangle with two sides of  
       42.0 ft that meet at a 105° angle? 
       A. 852 ft2                                          C. 863 ft2             
       B. 847 ft2                                          D. 798 ft2 

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