Concept :
HEAR is a parallelogram
⇒ HE=RA=5cm and EA=HR=6cm [Since opposite sides of a parallelogram are equal]
Also, ∠R=∠E=85∘ [Since opposite angles of a parallelogram are equal]
∠H=(180−85)∘=95∘ [Adjacent angles of a parallelogram are supplementry]
Steps of Construction:
1. Draw line segment HE = 5 cm.
2. At E construct an angle of 85∘. Draw an arc of length 6 cm intersecting the ray from E at A.
3. At A construct an angle of 95∘. Draw an arc of length 5 cm intersecting the ray from A.
4. With H as centre draw an arc of length 6 cm which intersects the earlier arc. Let it be R.
5. Join HR and AR to complete quadrilateral HEAR.