Math Problem Statement

Use the given measurements to solve ΔABC. Round to the nearest tenth.

Solution

To solve this problem using the Law of Sines, let's break down the information given in the triangle ABC\triangle ABC:

  1. Given Information:

    • Angle A=63A = 63^\circ
    • Side a=23a = 23
    • Side c=11c = 11
  2. Objective:

    • Solve for side bb, angle BB, and angle CC.
    • Round answers to the nearest tenth.

Step 1: Using the Law of Sines

The Law of Sines states that: asinA=bsinB=csinC\frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C}

Step 2: Find Angle CC

Since AA and CC are opposite sides aa and cc, we can write: 23sin63=11sinC\frac{23}{\sin 63^\circ} = \frac{11}{\sin C} Solving for sinC\sin C: sinC=11sin6323\sin C = \frac{11 \cdot \sin 63^\circ}{23} Calculate sinC\sin C to find the value of CC.

Step 3: Find Angle BB

Once we have CC, use the fact that the sum of angles in a triangle is 180180^\circ: B=180ACB = 180^\circ - A - C

Step 4: Find Side bb

Finally, use the Law of Sines to find bb: bsinB=23sin63\frac{b}{\sin B} = \frac{23}{\sin 63^\circ} Rearrange to solve for bb: b=23sinBsin63b = \frac{23 \cdot \sin B}{\sin 63^\circ}

With these steps, you can solve the triangle and check against the answer choices provided.

Would you like the detailed calculations for each step, or do you have questions about a specific part?


Here are five related questions:

  1. What is the Law of Cosines, and how is it used in solving triangles?
  2. How can we confirm whether a triangle is solvable with given side and angle measures?
  3. How does the sum of angles in a triangle affect calculations in non-right triangles?
  4. Why is it important to use radians or degrees consistently in trigonometric calculations?
  5. How can ambiguous cases occur in Law of Sines calculations?

Tip: Always verify if your triangle’s dimensions satisfy the given conditions, especially in cases with obtuse angles.

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Law of Sines
Triangle Solving

Formulas

Law of Sines: a/sin(A) = b/sin(B) = c/sin(C)
Sum of Angles in a Triangle: A + B + C = 180°

Theorems

Law of Sines
Angle Sum Property of a Triangle

Suitable Grade Level

Grades 10-12