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The sum of the measures of the three interior angles of any triangle is always 180°. The unmarked angles of the triangle below total 150°. angle A triangle.gif What is the measure of an angle that would be complementary to ∠ A ? A. 30° B. 60° C. 90° D. 150°

The sum of the measures of the three interior angles of any triangle is always 180 The unmarked angles of the triangle below total 150 angle A trianglegif What class=

Respuesta :

  • <A be x

As rest angles have sum 150°

Using angle sum property

  • x+150=180
  • x=30°

Now

Complementary angles have sum 90°

So the complementary angle is 90-30=60°

Option B

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