Answer:
9
Explanation:
it is equilateral, so all angles of triangle are equal to 60. so you set the equation 7x- 3=60. You add three to both sides to get 7x=63. Then you divide both sides to get x=9. Your final answer is 9.
solution given:
7x-3=60°[each angle of equilateral triangle is 60°]
7x=60+3
x=63/7
x=9 is a required answer.
4.8m questions
6.3m answers