The first angle of a triangle is 8tº, the second angle is 3tº, and the third angle is 9tº. What is the measure of 9tº ?

January 4, 2022

By Iris

1 thought on “The first angle of a triangle is 8tº, the second angle is 3tº, and the third angle is 9tº. What is the measure of 9tº ?<br /><br /”

1. Answer:

   c. 81°

   Step-by-step explanation:

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

   ∴ => 8t + 3t + 9t = 180°

   => 20t = 180

   => t = 9

   • Measure of 9t = 9 × 9

   = 81°

   Therefore, answer is c) 81°

   Hope this helps !

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