Q. 8

Draw rhombus BEST with the following measurements and calculate its area.

ET = 9 cm and E = 70°.

Answer :

ET is a diagonal

Step 1 – Draw a line ET of length 9 cm.



ET is an angle bisector of E as it is a diagonal in the Rhombus.


Also, opposite angles of a Rhombus are equal.


Step 2 – Draw lines at an angle 35° from E and T.



Here, E = T = 70°


they make 35° with the diagonal ET as it is an angle bisector in a Rhombus.


Step 3 – Mark the intersecting points as B and S to complete the Rhombus.



Measure the lengths of its Diagonals D1 and D2 and then find the area by


Area =


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