What is the length of the base if the triangle if the area is 29.16 square inches and the altitude is 5.4 inches? Round your answer to the nearest tenth.

A=b timmes height times 1/2

subsitute

a=29.16

height/altitude=5.4

29.16=1/2 times 5.4 times base

mmultiply both sides by 2 to get rid of fraction

58.32=5.4 times b

divide both sides by 5.4

10.8=base

the answe is 10.8 inches