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"Smartindia is the best online tool for school students." Ms Deepa Chandran, Principal Anchal
"Smartindia is one of the best supplementary education tool for school students." Ms Pooja, Principal
What are concave and convex quadrilateral? |
Convex quadrilaterals have diagonals which lie inside the figure. Concave quadrilaterals contain a reflex angle located within the solid. |