Answer:
15° , 45°, 120°
Step-by-step explanation:
sum the parts of the ratio, 1 + 3 + 8 = 12 parts
the sum of the 3 angles in a triangle = 180° , then
180° ÷ 12 = 15° ← value of 1 part of the ratio, then
3 parts = 3 × 15° = 45°
8 parts = 8 × 15° = 120°
the 3 angles are 15° , 45° , 120°
Answer:
postulates of 1-3 : if two independent planes intersect , they intersect in exactly 1 line . hope its helpful .
Answer:
389.35
Step-by-step explanation:
i did the math on my amazing $87 dollar calculator
The answer is $5.25 or .75 cents each