First find the area of the square sail: 5 inches * 8 inches = <<5*8=40>>40 square inches

Then find the area of a square sail with the same height and length as the first triangular sail: 3 inches * 4 inches = <<3*4=12>>12 square inches

Then divide the area in two to find the area of the triangular sail: 12 square inches / 2 = <<12/2=6>>6 square inches

Then find the area of a square sail with the same height and length as the second triangular sail: 4 inches * 6 inches = <<4*6=24>>24 square inches

Then divide the area in two to find the area of the triangular sail: 24 square inches / 2 = <<24/2=12>>12 square inches

Then add up the areas of all the sails to find the total amount of canvas needed: 12 square inches + 6 square inches + 40 square inches = <<12+6+40=58>>58 square inches

# Answer

58
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Mary is making a model sailboat. She wants to add three sails: a rectangular sail that measures 5 inches by 8 inches and two right triangular sails, one that's 3 inches long at the bottom and 4 inches tall and one that's 4 inches long at the bottom and 6 inches tall. (Remember you can find the area of a triangle by dividing the area of a square with the same height and length by 2). How many square inches of canvas does she need total?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
58
Mary is making a model sailboat. She wants to add three sails: a rectangular sail that measures 5 inches by 8 inches and two right triangular sails, one that's 3 inches long at the bottom and 4 inches tall and one that's 4 inches long at the bottom and 6 inches tall. (Remember you can find the area of a triangle by dividing the area of a square with the same height and length by 2). How many square inches of canvas does she need total?
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