Answer:
(1) ? = 105° , (2) ? = 40°
Step-by-step explanation:
• The sum of the 3 angles in a triangle is 180°
(1)
? + 30° + 75° = 180°
? + 105° = 180° ( subtract 105° from both sides )
? = 75°
(2)
? + 100° + 40° = 180°
? + 140° = 180° ( subtract 140° from both sides )
? = 40°
