Question

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Answer 1

The area of quadrilateral ABCD is 2 spare units, It is obtained from the given diagram.

Step-by-step explanation:

The given is,

             Quadrilateral ABCD

Step:1

           Let,

           Area of Quadrilateral ABCD = Area of ΔABC +Area of ΔADC.....(1)

           From ΔABC,

                      Height of ΔABC, $h_{ABC}$ - 1

                      Base of ΔABC, $b_{ABC}$ - 2

            From ΔADC,

                      Height of ΔADC, $h_{ADC}$ - 1

                      Base of ΔADC, $b_{ADC}$ - 2

Step:2

           Area of triangle is,

                        $Area ,a = \frac{hb }{2}$

           For ΔABC,

                                     = $\frac{(1) (2)}{2}$

                                     = 1 square units

           For ΔADC,

                                     = $\frac{(1) (2)}{2}$

                                     = 1 square units

Step:3

            From equation (1),

                                     = 1 + 1

                                     = 2 square units

Result:

            The area of quadrilateral ABCD is 2 spare units, It is obtained from the given diagram.