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myrzilka [38]
3 years ago
13

In A ABC, AB = 51 cm, BC = 52 cm and CA = 101 cm, then find the area of A ABC,​

Mathematics
1 answer:
liberstina [14]3 years ago
7 0

Step-by-step explanation:

sorry..by any chance if my answer is incorrect

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Consider the triangle A(4,0), B(-2,4), C(0,6)<br> What will be the equation of the altitude BM?
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Answer:

BM: <u>y = (2/3) x + 16/3</u> with segment length of 2.77

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AC formula: m = (6-0)/(0-4) = -3/2

(y-0)/(x-4) = -3/2       y = (-3/2)x + 6   ... (1)

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intercept of AC and BM (M) from (1) and (2): (-3/2)x + 6 = (2/3) x + 16/3

(13/6) x = 2/3      x = (2/3) / (13/6) = 4/13 ≈ 0.31

y = (2/3) (4/13) + (16/3) = (8/39) + (208/39) = 216/39 = 72/13 ≈ 5.54

M (4/13 , 72/13) or (0.31 , 5.54)

segment BM = √(4/13 - -2)² + (72/13 - 4)² = √1300/169 = 2.77

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