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

BS = 10 cm and ∠B = 60°.

BS is a diagonal

Step 1 – Draw a line BS of length 10 cm.

BS is an angle bisector of ∠B as it is a diagonal in the Rhombus.

Also, opposite angles of a Rhombus are equal.

Step 2 – Draw lines at an angle 30° from B and S.

Here, ∠B = ∠S = 60°

∴ they make 30° with the diagonal BS as it is an angle bisector in a Rhombus.

Step 3 – Mark the intersecting points as E and T to complete the Rhombus.

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

Area =