If one angle of a triangle is 130 then the angle between the bisectors of the other two angles is
Answers
Answered by
275
let there be angles a b c
a+b+c=180°
let a be 130
b+c=50°
ln the triangle formed by bisectors
1/2c+1/2b+d=180
since
b+c=50°
therefore
1/2c+1/2b=50/2°
1/2c+1/2b=25°
therefore
1/2c+1/2b+d=180
since
1/2c+1/2b=25°
therefore
d=155°
d is the angle between bisectors
a+b+c=180°
let a be 130
b+c=50°
ln the triangle formed by bisectors
1/2c+1/2b+d=180
since
b+c=50°
therefore
1/2c+1/2b=50/2°
1/2c+1/2b=25°
therefore
1/2c+1/2b+d=180
since
1/2c+1/2b=25°
therefore
d=155°
d is the angle between bisectors
Answered by
153
Angle A=130
A+B+C=180
130+B+C=180
B+C=50
1/2 B +1/2 C=50/2
1/2 B + 1/2 C=25
1/2 B + 1/C + D=180
25 + D=180
D=155
hope! it will help you.
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