Question

My Sir said to make add these so how will I add this please give me answer of number c and d​

Answer 1

For (d) It should be equal to 180 degree because angle sum property of a triangle is total 3 angles will be equal to 180 degree

so

ex: 30 + 60 + 90 = 180 degree

Answer 2

Answer:

c)

ii) is the correct answer. The way of solving is that the sum of any 2 sides should always be greater than the 3rd side.

d)

i) The way is that we should add up all the angles and the sum should be equal to 180°.

Hope it helps.