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ABC is an equilateral triangle.
If the mZA-7x -9.1.
Find the value of x rounded to the nearest tenth. (If your answer is exact. nlease nut at the end

ABC Is An Equilateral Triangle If The MZA7x 91 Find The Value Of X Rounded To The Nearest Tenth If Your Answer Is Exact Nlease Nut At The End class=

Sagot :

Mhanifaidn

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)
MisterBrainlyidn

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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