You can
put this solution on YOUR website! The angle between the equal side of an isosceles
triangle is 40.find the other two angles.
/\
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/40° \
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/x° x°\
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The base angles of an isosceles triangle
are equal, so we can label each of them
with the same unknown x°.
To get the equation, we use the fact that the sum
of the three angles of a triangle always have sum
equal to 180°.
x° + x° + 40° = 180°
x + x + 40 = 180
2x + 40 = 180
2x = 140
x = 70
The other two angles are 70° each.
Edwin
