Question

A,b andc are three angles ofa triangle
ifa_b=15°,b_c=30° , findabgle a , band c
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Answer 1

Answer:

hope this helps you

a+b+c=180°

if ,

b=15°

and c=30°

then

a+15°+30°=180°

a=180-45

a=135°

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Answer 2

sum of angles of a triangle is 180 _______________ 1condition

let angle abc=15 degree &angle bac=30 degree then we have to find angle acb. i.e angle acb=?

according to first condition

angle abc + angle bac + angle acb =180

15+30+ angle acb =180

45+ angle acb=180

angle acb =180-45

angle acb =135

i.e angle abc is also said to be angle b and bac is angle a and acb is angle c so angle a b and c are 30,15 and 135 respectively