•To solve a triangle is to find the lengths of each of its sides and all its angles. The sine rule is used when we are given either a) two angles and one side, or b) two sides and a non-included angle. The cosine rule is used when we are given either a) three sides or b) two sides and the included angle.
•by using this theorem, we can answer the following questions. We will Focus on numbers 8-10 and I will show you how to find the missing angles and sides.
since that we are given two sides and a non-included angle, the case is SSA.
Answers & Comments
Answer:
1.D
2.B
3.D
4.C
5.C
6.B
7.C
8.A.28°
9.7°
10. 27
Step-by-step explanation:
•To solve a triangle is to find the lengths of each of its sides and all its angles. The sine rule is used when we are given either a) two angles and one side, or b) two sides and a non-included angle. The cosine rule is used when we are given either a) three sides or b) two sides and the included angle.
•by using this theorem, we can answer the following questions. We will Focus on numbers 8-10 and I will show you how to find the missing angles and sides.
since that we are given two sides and a non-included angle, the case is SSA.
by using the law of sines to solve for ∠B,
∠C=145, b=7, c=33 ∠B=x
therefore,
∠B=7°
Calculating for Angle A,
therefore,
∠A=28
calculating for side α,
therefore,
side a is 27.
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