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ziro4ka [17]
3 years ago
14

Solve for a side in right triangles help

Mathematics
2 answers:
Pani-rosa [81]3 years ago
7 0

Answer:

The length of AB is 7.45 units.

Step-by-step explanation:

You can find the length of AB using Cosine Rule, cosθ = adj./hypo. :

θ = 20°

adj. = 7 units

hypo. = AB

cos 20° = 7/AB

AB = 7/cos 20°

= 7.45 units (3s.f)

daser333 [38]3 years ago
3 0

Answer:

7.45

Step-by-step explanation:

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Answer:

The sign would be positive.

The answer would be 144.

Step-by-step explanation:

Note that there are two negative numbers and two positive numbers:

positive x positive = positive answer.

negative x negative = positive answer.

Solve:

(-4) * (-3) = 12

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12 * 12 = 144

144 would be your answer.

~

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3 years ago
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