Question

find it's area ( hint : answer is 300 cm ^2 )​

Answer 1

Answer:

600

Step-by-step explanation:

The answer is 600 because if you multiply both 20x30 it equals 600. :)

Answer 2

Answer:

300 cm^2

Step-by-step explanation:

As per fig. , ABCD is a quadrilateral in which AC and BD are it's diagonals

=> AC= 20cm, BD= 30cm and BE= 12cm

find it's area

Solution, In triangle ABC

=> Area of triangle ABC = 1/2× base× heigth

= 1/2 × 20 × 12

= 10×12

= 120 cm^2

In triangle ADC,

=> Area of triangle ADC = 1/2× base× heigth

= 1/2× 20× 18

= 10×18

= 180 cm^2

Now the area of quadrilateral ABCD = area of triangle ABC + area of triangle ADC

ar(ABCD) = 120+ 180

ar(ABCD) = 300 cm^2