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valentinak56 [21]
3 years ago
13

The figure below shows two pair of congruent triangles.DFE​

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
7 0

Answer:

c) YWX

Step-by-step explanation:

D corresponds with Y, W with F and X with E

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Sin^2x + sin^2x + cos²x
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Answer:

Answer:

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Step-by-step explanation:

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Answer:

Hope it helps....!!!!!

Step-by-step explanation:

AB = c = 38

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Cosine rule: c^2 = a^2 * b^2 -2ab * cos C

38^2 = 29^2 * b^2 - (2* 29) * b * (cos 38)

1444 = 841 * b^2 - 58 * b * 0.955

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11.63 = b (rounded to two decimal places)

Now solving for angle A:

Sine rule: a/sinA = b/sinB

29/sinA = 11.63/sin(63)

sinA/29 = sin(63)/11.63

sin A = (sin(63)/11.63) * 29

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A = sin^-1 (0.41731)

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sinC/38 = sin(63)/11.63

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