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Yanka [14]
3 years ago
13

Will give brainliest ^-^

Mathematics
2 answers:
Softa [21]3 years ago
6 0
First, find the area of the whole square 
9 x 9 = 81
----------------------------
Now find the area of the triangles. Two triangles equal 1 square since the triangles are 3 feet on one side and one another, the area of two triangles is 9, or 4.5 for one
Now multiply by 2 or 4 depending on which number you decide ( 9 or 4.5)
9 x 2 = 18
4.5 x 4 = 18
--------------------------------------------
Now subtract 
81 - 18 = 63
63 is your answer

ANEK [815]3 years ago
3 0

area of square = 9 x 9 = 81 square feet


 area of 1 corner = 1/2 * 3 * 3 = 4.5 square feet

4.5 * 4 = 18 square feet total of all 4 corners

81 - 18 = 63 square feet total not covered by benches.


Please mark Brainliest.


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