Answer:
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Thee answer is 25. 25 is a square number as it is 5 times 5. The sum of the digits 2+5 is 7.
How is she starting off with five yards of fabric but is using 13 and 72 yards of fabric something isn’t right with this question...
It should be acute because if A and B are complementary then B and A added together should be 90 so 90-30=60 and 60 would be an acute angle
Take whatever side lengths you have and divide that number by 1/3 in your calculator and what number is shown after doing this is the answer