Question

In the given figure, AB//CD, AB = 7 cm,
BD = 25 cm and CD = 17 cm; find the
length of side BC.​

Answer 1

Answer:

30.24 cm

Step-by-step explanation:

It will become a quadrilateral and bcd forms a right angled triangle where we can apply Pythagorean theorem.

which gives bc²= bd²+cd²

let bc = x, bd=25, cd= 17

x²= 914

x=√914 ≈ 30.24