Question

the angles of a triangle are in an arithmetic sequence with common difference 12. find the angles ​

Answer 1

Answer:

the angle of Triangle are 48,60,72.

Step-by-step explanation:

let the first angle be x

and common difference =12

no.of angle in Triangle=3

and sum of all the angle of Triangle=180

then,

sum of ap =n/2{2a+(n-1)d}

180=3/2{2×X+(3-1)12}

180×2/3=2x+24

2x+24=120

2x=96

x=48

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