Question

4. The sum of two angles of a triangle is equal to its third angle. Determine the measure of the third
angle.
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Answer 1

<A=90

Step-by-step explanation:

consider angle ABC,

the according to given condition

<A =<B +<C

sum of thr all interior angle of the triangle is <A= 180

<A= 90

Answer 2

Answer:

HOPE IT HELPS U

Step-by-step explanation:

In the given problem ,the sum of two angles of a triangle is equal to its third side .

we need to find the measure of the third angle.

suppose ABC is a triangle.

A+B+C.....(1)

Now, according to the angle sum property of the triangle , we get,

<A + <B + < C = 180 degree

<C+ <C =180 degree (using 1)

2<C= 180 degree

<C= 180 degree /2

<C =90 degree

Therefore, the angle of the third side is

<C=90 degree