Law of Sines Missing Sides

Find BC to the nearest whole number.

• 38 yd

• 23 yd

• 18 yd

• 41 yd

Which triangle can be solved by the law of sines?

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Solve for AB. (Hint: consider what you need first.)

• 18 yd

• 21 yd

• 17 yd

• 28 yd

Find c in terms of sine and the side lengths.

Use law of Sines to find side c.

Round your answer to the nearest hundredth

Mathematical Equivalence

OFF

Use law of Sines to find angle C.

Round your answer to the nearest tenth

Mathematical Equivalence

OFF

In triangle ABC m<A = 42, a = 10, b = 13.  Find c.

• c = 0.8699

• c = 60.4

• c = 13.0

• cannot be determined because the triangle does not exist

In triangle ABC, m<A = 42, a = 10, b = 13.  Find c.

• c = 0.8699

• c = 60.4

• c = 13.0

• cannot be determined because the triangle does not exist

To find the distance AB across a river, a distance BC = 354 m is laid off on one side of the river. It is found that B = 112^o and C = 15^o. Find AB. Round to the nearest meters.

• 91 meters

• 115 meters

• 219 meters

• 299 meters