Answer:
4
Step-by-step explanation:
a triangle has angles that add up to 180°
an equilateral triangle has equal angles
so each angle is 60° (because 180/3 is 60)
so 10x +20 = 60
10x = 40
x = 4
Answer:
привет, я не знаю, как ответить на вопрос
Step-by-step explanation:
Answer:
no clue sorry
Step-by-step explanation:
Answer:
-1/12
Step-by-step explanation:
make the denominators congruent
8/12 and 9/12
then subtract
-1/12
