Question

draw three triangles with of two sides 4 cm and 5 cm and tge angle between them 60degree 90 degree and 120 degree​

Answer 1

Step-by-step explanation:

Take the side of length 5 as your base. When you draw a height using this base, you will get a 30-60-90 triangle with a hypotenuse of 4. Since the short side in this triangle is our height, and since the short side in a 30-60-90 triangle is half the hypotenuse, the height is 2. So the area is 5*2/2 = 5.

A bit easier to see with a diagram of course