solve for b.\n68.5° 49.5°\nb = ?°
solve for b.\n68.5° 49.5°\nb = ?°
Answer
Explanation:
Step1: Recall angle - sum property of a triangle
The sum of the interior angles of a triangle is 180°. Also, the exterior - angle of a triangle is equal to the sum of the two non - adjacent interior angles.
Step2: Calculate the value of (b)
We know that the exterior angle of the triangle is (68.5^{\circ}+49.5^{\circ}=118^{\circ}). Since the sum of an interior angle (b) and its adjacent exterior angle is 180° (linear pair of angles), then (b = 180-(68.5 + 49.5)). [b=180 - 118] [b = 62^{\circ}]
Answer:
(62)