2 answers:
Answer:
a) x = 6° b) m∠B = 50°
Explanation:
(a) total angle measure of a triangle is 180°
8x + 2 + 70° + 60° = 180°
8x + 132° = 180°
8x = 180° - 132°
8x = 48°
x = 6°
(b)
m∠B = 8x + 2
m∠B = 8(6) + 2°
m∠B = 48° + 2°
m∠B = 50°
Answer:
A. X is 6 and B. Angle is 50
Step-by-step explanation:
PART A
Triangle sum theorem explains that all angles in a triangle add up to 180
(8x + 2) + 70 + 60 = 180
8x= 180-70-60-2
8x= 48
X= 48/8 =6
PART B
Using the formula provided, replace the x with 6
So it'll be 8(6)+2 = 48+2 = 50
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