Question

two angles of triangle are 45degree and 54 degree. find the measure of third angle​

Answer 1

Answer:

let a=45

b=54

and third angle is c

we know a+b+c=180

45+54+c=180

c+99=180

then c=180-99

c=81

hope this is helpful

Answer 2

Answer:

We know that ,addition of three angles of a triangle=180°

Given,

two angles are 45°,54°

let,

the third angle is x

so,

45°+54°+x = 180°

99°+x. =180°

x. = 81°

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