In: Math
Two angles of a quadrilateral measure 140° and 80°. The other two angles are in a ratio of 3:4. What is the value of x? What are the measures of those two angles?
x =
Measures of two angles are?
Since the other two angles of the quadrilateral are in ratio 3:4, therefore assume that the angles are and . Then since the sum of all angles of a quadrilateral must be , therefore:
---------------------------------------------------
The value of other two angles are :
And
--------------------------------
Therefore value of is 20.
Measure of other two angles are and .