Question

in a triangle angle a +angle b =65 and angle b +angle c =140 find angle b​

Answer 1

Answer:

25

Step-by-step explanation:

a+b=65 ........ 1

b+c=140........ 2

but we know that sum of all angles of triangle is 180.

so,

a+b+c=180....... 3

subtracting 2 from 3 ,

we get,

a= 40

substituting this value in 1,

we get,

a+b=65

40+b=65

b=65-40

b=25

Answer 2

In a triangle according to according to angle sum property

a+b+c=180 degree and a=40 degree

a+b=65 degree

b=25 degree

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