3. The measures of angles of a triangle are xº,
(x-20), (x-40). Find the measure of eachhfind the measurements of the 3 number
5. I
angle.
Answers
Answered by
2
Answer:
Measure of 1
st
angle =x
o
Measure of 2
o
angle =(x−20)
o
Measure of 3
rd
angle =(x−40)
o
By using angle sum property of triangle
x
o
+(x−20)
o
+(x−40)
o
=180
o
3x−60=180
3x=240
x80
o
∴ Measure of 1
st
angle =x
o
=80
o
Measure of 2
nd
angle =(x−20)
o
=60
o
Measure of 3
rd
angle =(x−40)
o
=40
o
Answered by
1
Answer:
first angle be x°
second angle be (x-20)
third angle be (x-40)
using angle sum property
the sum of the all the angle of the triangle is equal to 180°
So
x+x-20+x-40=180°
3x-60=180°
3x=180+60
3x =240
x=80°
first angle be =80°
second angle be=80-20 = 60
third angle be =. 80-40 = 40
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