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RideAnS [48]
3 years ago
7

Solve triangle ABC given that A=56 B=57 b=9

Mathematics
2 answers:
docker41 [41]3 years ago
7 0
Sin A/a = Sin B/b
Sin 56/a = Sin 57/9
a = (Sin 56/Sin 57) x 9
a = 8.9

c) C=67, a=8.9, c=9.88
spayn [35]3 years ago
7 0
Sin A / a = sin B / b
sin 56 / a = sin 57 / 9
a = 9sin 56 / sin 57 = 8.9

C = 180 - 56 - 57 = 67

sin 67 / c = sin 57 / 9
c = 9sin 67 / sin 57 = 9.88

option c is the correct answer.
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Answer:

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Step-by-step explanation:

A square room will have corners that meause 90°, so we need to see if any of the vertices of the bookcase measure 90°.  All right triangles have a 90° in them, so we can use Pythagorean Theorem to solve this.

 Pythagorean Theorem is  a² + b² = c²,    where a and b are the legs, and c is the hypotenuse.  Since the hypotenuse is always the longest side, for our bookshelf, 10 and 12 are the legs, and 18 would be the hypotenuse if it is a right triangle.   Plug the values in to see if the equation is true or false

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3 years ago
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RideAnS [48]
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3 0
3 years ago
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8 0
3 years ago
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Nutka1998 [239]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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MrMuchimi

Answer:

3.)138

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Step-by-step explanation:

you add the two inside measures together.

5 0
3 years ago
Read 2 more answers
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