Question

sum of two angles of a triangle is equal to third angle determine the value of third angle​

Answer 1

Answer:

Consider △ABC,

Then according to the given condition, ∠A=∠B+∠C

Sum of all the interior angles of the triangle is 180 o

Hence, ∠A+∠B+∠C=180

o 2∠A=180

o⇒∠A=90 0

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Answer 2

Answer:

True

Step-by-step explanation:

Sum of angles of a triangle is 180°

If two angle are given we can easily get the value of the 3rd angle

Example:

If two angle are given as 40 & 60

We know that sum of angles of triangle is 180°

40+60+3rd=180

100+3rd=180

3rd angle=180-100

=80°