Read posting **Sarin learns Lines and Angles (Math concept)** to understand the concept of lines and angles. Read also posting **Sarin learns Shapes and Solids in school (Math Concept)** to know about shapes.

Upper primary school mathematics question UPQ65

In the figure below, not drawn to scale, EFGH is a parallelogram. JK is a straight line and ∠ FEJ = 35^{0}. Find ∠ HEK.

*Solution:*

EFGH is a parallelogram, FG//EH

∠ FEH = 180^{0} – 64^{0} = 116^{0}

∠ HEK = 180^{0} – 116^{0} – 35^{0} = 29^{0}