Question

two angles of triangle are45° and 55°.Find the measure of third angle​

Answer 1

Answer:

Step-by-step explanation:

We know that sum of the 3 angles of any triangle is equal to 180 degree.

For triangle ABC

Let angleA= 45 Degree, AngleB=55 Degree.

So there sum= 45+55= 100 degree

So third angle C= 180-100= 80 degree

Answer 2

Step-by-step explanation:

Let the measurement of third angle be x⁰.

a/q sum of all angles of a triangle=180⁰

=>45⁰+55⁰+x⁰=180⁰

=>100⁰+x⁰=180⁰

=>x⁰=180⁰-100⁰

=>x⁰=80⁰

ans.