Question

The construction of a triangle
ABC which AB=4m, angleA = 45 degree
is not possible when difference of BC and Ac is equal to ?​

Answer 1

Answer:

We know that, the construction of a triangle is not possible, if sum of two sides is less than or equal to the third side of the triangle.

i.e., AB + BC < AC

⇒ BC < AC – AB

⇒ 6 < AC-AB

So, if AC – AB= 6.9 cm, then construction of ΔABC with given conditions is not possible.