Answer: Yep! This is true.
Explanation: Real number subsets also include irrational numbers, whole numbers, integers, and natural numbers.
M∠ADB + m∠BDC = m∠ADC [<span>angle addition postulate]
x + x + 10 = 60
2x + 10 = 60
2x = 60 - 10
2x = 50
x = 50/2
x = 25
a
m</span>∠ADB = x = 25°
b
m∠BDC = x + 10 = 25 + 10 = 35°
The answer is c 10% of 89 is 8.9 so multiply by 3 you get 26.70
