Answer:
x = 9
Step-by-step explanation:
Since you have a equilateral triangle all angles are 60°.
7x - 3 = 60
7x = 60+3
7x = 63
x = 63/7
x = 9
Answer:
17
Step-by-step explanation:
12+5=17
Answer:
133 square centimeters
Step-by-step explanation:
Answer:
A
Step-by-step explanation: