Question

Question 3
Examine whether you can construct $\Delta$ DEF such that EF = 7.2 cm, $\angle$ E = ${110}^{\circ }$ and $\angle$ F = ${80}^{\circ }$. Justify your answer:

Answer 1

As the sum of two angles of triangles = ${110}^{\circ }+{80}^{\circ }={190}^{\circ }$
Since, sum of all angles of triangle = ${180}^{\circ }$.
Therefore, construction of triangle is not possible.