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Anna71 [15]
3 years ago
5

Quadrilateral ABCD is graphed on a coordinate plane. Three of its vertices are at A (2.6), Point B(6,8), and Point C(8,4). Which

of the following
additional statements is sufficient to prove that quadrilateral ABCD is a square?

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
5 0

What was the correct answer?

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Please help with this math question
nika2105 [10]
263.27 m^2

rectangle : 15 x 10 = 150 m^2
the half circle at the top has a diameter of 6m. therefore, it’s radius is 3m. if it is cut in half, the part removed from the triangle height is 3m. therefore, the height of the triangle is 35 -15 = 20; 20 - 3 = 17. the height of the triangle is 17. the triangle area formula is a = 1/2(bh).
a = 1/2 (10)(17)
a = 1/2 (170)
a = 85 m^2
the circle would be a = πr^2 but divided by 2 bc it’s a half circle
a = π(3)^2
a = π9
a = 28.27 m^2
150 + 85 + 28.27 = 263.27 m^2
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<h3><u>Answer</u><u>:</u><u>-</u></h3>

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