ABCD is a quadrilateral in which AB = 5 cm, CD = 8 cm and the sum of angle A and angle D is 180°...

In a quadrilateral ABCD ,AB = 6 cm , C D =8 cm and sum of angles A and D is 180^(@) .This ----------- .

ABCD is a quadrilateral with AB = 9 cm, BC = 40 cm, CD = 28 cm, DA = 15 cm and angle ABC is a right-angle. What is the area of quadrilateral ABCD ?

ABCD is a quadrilateral with AB = 9 cm, BC = 40 cm, CD = 28 cm, DA = 15 cm and angle ABC is a right-angle. What is the difference between perimeter of triangle ABC and perimeter of triangle ADC ?

ABCD is a cyclic quadrilateral in which AB = 15 cm, BC = 12 cm and CD = 10 cm. If AC bisects BD, then what is the measure of AD?

A park is in the shape of quadrilateral ABCD in which AB = 9 cm, BC = 12 cm, CD = 5 cm, AD = 8 cm and angle C = 90^(@) . Find the area of the park.

ABCD is a quadrilateral in which AB=BC and AD =CD ,Show that BD bisects boht the angle ABC and ADC

Is it possible to construct a quadrilateral ABCD in which AB = 3 cm, BC = 4 cm, CD = 5.4 cm, DA = 5.9 cm and diagonal AC = 8 cm? If not, why?