Question

Construct and prove that AB+CD=12.9cm, if AB=3.9cm and CD=9.3.please tell me​

Answer 1

Answer:

Draw a line segment DC =9.6cm

With D as center , draw an angle measure 60

∘

. Now , cut off it with an arc 3.2cm cm called point A.

Now , draw a parallel AB to CD

Taking C as center , cut an arc B measuring 3.2cm on previous parallel line.

Draw a line segment BE =3.2cm from arc B

Join B to E and C

Thus we have required trapezium ABCD in which ∠ A =120

∘

and ∠ B =60

∘