Question

ABC is an equilateral triangle.

Answer 1

Answer:

• x = 9.9

Step-by-step explanation:

An equilateral triangle is the triangle with equal interior angles.

Each angle has measure of 60°, therefore:

• m∠A = 60°

Substitute and solve for x:

• 7x - 9.1 = 60
• 7x = 69.1
• x = 69.1/7
• x = 9.9 (rounded)

Answer 2

Answer:

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