Can you all four angles of a quadrilateral obtuse angles? Give reasons for your answer.

Can all the angles of a quadrilateral be acute angles? Give reasonf for you answer.

True/false All the four angles of a quadrilateral can be obtuse angles.

If one of the angles formed by two intersecting lines is a right angle, what can you say about the other three angles? Give reasonf for your answer.

Sum of the four angles of a quadrilateral is the four right angles.

Can an acute angle be adjacent to an obtuse angle?

Sum of all the interior angles of a quadrilateral is 180^(@) ?.

In the following figure, is angle1 adjacent to angle2 ? Give reasons.