Question

abcd is a trapezium with ab=4.5cm,dc=12cm and bf=4cm
What is the length of de

Answer 1

bro measure it....

hope it helps

Answer 2

Answer:

Step-by-step explanation:Let ABCD is the trapezium and h is the height which is required to be found.

Let AB=11 cm, CD=6 cm and AB is parellel to CD.

Let distance between foot of perpendicular h and A

is X.

So distance between B and foot of 2nd perpendicular from C=11–6-x=5-x.

There are 2 rt. angled triangles.

Applying Pythogorous theorem,

For one triangle,

h^2=3^2-x^2—————(1)

For 2nd triangle,

h^2=4^2-(5-x)^2————-(2)

From (1)&(2), x=1.8 cm and

required h=2.4 cm