Question

Write a formula for finding the area of a AABC with Coordinates of the Vertices as A(x1, y1), B(x2, y2), C(x3, y3).
Q17, Write One application of Trigonometry
Q18. State Pythagoras theorem?
Q19. If P(E) = 0.5, find P(notes)?
Q20. Given r=1 unit, find the vol. of Sphere?​

Answer 1

Answer:

1/2{x1(y2-y3)+(y3-y1)+(y1-y2)}