Question

The sum of 3 interior angles of a quadrilateral is 262°. Find the measure of the fourth interior angle.

Answer 1

The four interior angles of a quadrilateral always add to 360°, so the answer is 98

Answer 2

The sum of the four interior angles of a quadrilateral always equals $360^{\circ}$.

Now, it is given that the sum of 3 interior angles of a quadrilateral is 262°. Thus, the measure of the fourth interior angle will be:

Fourth interior angle = $360^{\circ}-262^{\circ}=98^{\circ}$

Thus, out of the given options, The first option is the correct one.