One angle of a triangle is 39º, another angle is 84º. What is the measurement of the last angle of the triangle?

2 thoughts on “One angle of a triangle is 39º, another angle is 84º. What is the measurement of the last angle of the triangle?<br /><br /><br />”

1. Answer:

   c. 57°

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   Step-by-step explanation:

   We know that, sum of all angles in a triangle = 180°

   Let the last angle be x

   ∴ => 39° + 84° + x = 180

   => 123 + x = 180

   => x = 180° – 123°

   => 57°

   Therefore, the answer is c. 57°

   Hope this helps !

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2. Answer:

   option c is the correct answer

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