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Answer :

Mhanifago

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)
MisterBrainlygo

Measure of all angles in equilateral triangle is 60°

So

  • m<A=60
  • 7x-9.1=60
  • 7x=69.1
  • x=9.9

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