Question

If 4, 5 are two sides of a triangle and the included angle is 60°, find its area.

Answer 1

Answer:

5√3 unit²

Step-by-step explanation:

Area of a triangle = 1/2 ab sin C

Area of the triangle = 1/2 (4)(5) sin (60)

Area of the triangle = 10 (√3/2) = 5√3

Answer: The area is 5√3 unit²