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3 years ago

Right triangle ABC is shown. Which of these is equal to cos(A)?

Mathematics

2 answers:

REY [17]3 years ago

7 0

Answer: C

cosA=AC/AB

sinB=AC/AB

hence cosA=sinB

Anvisha [2.4K]3 years ago

6 0

Answer:

C).

Step-by-step explanation:

Since angles A and B are complementary, their cofunctions are equal. So, cos(A) = sin(B).

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Let the length of the first piece be x.

Let the length of the second piece be 2x

Let the length of the thrid piece be 4x

Since the total length of the piece is 56 ft, then we can say that;

x + 2x + 4x = 56

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Length of third piece = 4 * 8 = 32 ft

Thus, the lengths of the first, second and third piece are respectively 8 ft, 16 ft and 32 ft

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The law of cosines is used with oblique triangles true or false?

I am Lyosha [343]

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iren2701 [21]

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Answer:

$\boxed{\sf 24\ cookies}$

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