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2 years ago

What is the answer??? Only if you know please i will report you no games only if you know it please it’s geometry

Mathematics

1 answer:

Natalka [10]2 years ago

3 0

Answer:

43, 40

Step-by-step explanation:

1) Exterior angles are equal.

(x + 44) = 87 --> 87 - 44 = 43

x = 43

2) Alternate interior angles are equal.

(x - 30) = 70

x = 40

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2 years ago

Vertices A and B of triangle ABC are on one bank of a river, and vertex C is on the opposite bank. The distance between A and B

Anna71 [15]

Answer:

The length of side b is 179 ft

Step-by-step explanation:

Given triangle ABC in which

∠A = 33°, ∠B = 63°, c=200

we have to find the length of b

In ΔABC, by angle sum property of triangle

∠A+∠B+∠C=180°

33°+63°+∠C=180°

∠C=180°-33°-63°=84°

By sine law,

$\frac{\sin \angle A}{a}=\frac{\sin \angle B}{b}=\frac{\sin \angle C}{c}$

$\frac{\sin \angle B}{b}=\frac{\sin \angle C}{c}$

$\frac{\sin 63^{\circ}}{b}=\frac{\sin 84^{\circ}}{200}$

$b=200\times \frac{\sin 63^{\circ}}{\sin 84^{\circ}}=179.182887\sim 179 ft$

The length of side b is 179 ft

Option C is correct.

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