Question

find the value of x.
(there is a quadrilateral with angles 131°, x°, 70°, 74° and a box to fill x = )

Explanation:

Step1: Recall quadrilateral angle sum

A quadrilateral's interior angles sum to \(360^\circ\).

Step2: Sum known angles

Known angles: \(131^\circ\), \(70^\circ\), \(74^\circ\). Sum: \(131 + 70 + 74 = 275^\circ\).

Step3: Solve for \(x\)

\(x = 360 - 275 = 85\).

Answer:

\(x = 85\)