Question

If in the quadrilateral ABCD the angle A =78° and the angle B =125° , how many degrees are there in the sum of the angles ADC and BCD​

Answer 1

Step-by-step explanation:

As we know sum of 4 angles of quadrilateral is 360°

• Therefore, angleA+ angleD =180(sum of interior angles)
• Hence angleD=102°
• Now angleD+angleC=180°(sum of interior angles)
• Hence angleC=55°