Question

25. Find the area of a
parallelogram ABCD in which AB= 28 cm, BC = 26 cm and diagonal AC = 30 cm​

Answer 1

Answer:

Step-by-step explanation:Let the sides of the triangle ABC be:

a = 26 cm

b = 30 cm

And

c = 28 cm

Let us find out the value of s

We know that,

s= 42 cm

We know that,

Area of triangle ABC = 14 × 3 × 4 × 2

= 336 cm2

We know that,

In a parallelogram, the diagonal divides the parallelogram in two equal area

Therefore,

Area of quadrilateral ABCD = Area of triangle ABC + Area of triangle ACD

= Area of triangle ABC × 2

= 336 × 2  

= 672 cm2

Hope it answers