The image features a diagram of a triangle with vertices labeled A, B, and C. The sides and angles are marked as follows: - Side \( b = 12 \) opposite angle at vertex B. - Angle at vertex B is \( 48^\circ \). - Side \( c = 16 \) opposite angle at vertex C. - Angle at vertex C is \( 21^\circ \). - Side \( a \) is not labeled with a value, opposite angle at vertex A. The text reads, "Find a, A, C." The diagram involves a geometric problem where the goal is to find the length of side \( a \), and the measures of angles \( A \) and \( C \). Since the angles B and C are given, the measure of angle A can be found using the triangle angle sum property, which states that the sum of the interior angles of a triangle is \( 180^\circ \). Given: 1. Angle B \( = 48^\circ \) 2. Angle C \( = 21^\circ \) Angle A can be calculated using: \[ A = 180^\circ - B - C = 180^\circ - 48^\circ - 21^\circ = 111^\circ \] To find the length of side \( a \), the law of sines can be applied: \[ \frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C} \] This provides a full solution approach for finding the unknown values.
The image features a diagram of a triangle with vertices labeled A, B, and C. The sides and angles are marked as follows: - Side \( b = 12 \) opposite angle at vertex B. - Angle at vertex B is \( 48^\circ \). - Side \( c = 16 \) opposite angle at vertex C. - Angle at vertex C is \( 21^\circ \). - Side \( a \) is not labeled with a value, opposite angle at vertex A. The text reads, "Find a, A, C." The diagram involves a geometric problem where the goal is to find the length of side \( a \), and the measures of angles \( A \) and \( C \). Since the angles B and C are given, the measure of angle A can be found using the triangle angle sum property, which states that the sum of the interior angles of a triangle is \( 180^\circ \). Given: 1. Angle B \( = 48^\circ \) 2. Angle C \( = 21^\circ \) Angle A can be calculated using: \[ A = 180^\circ - B - C = 180^\circ - 48^\circ - 21^\circ = 111^\circ \] To find the length of side \( a \), the law of sines can be applied: \[ \frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C} \] This provides a full solution approach for finding the unknown values.
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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