👉🏼Find the perimeter of this sector:

👈🏼Solve the simultaneous equations:

x + y = 3

x²+y²=5

👆🏼Find x and y:

👇🏼y is inversely proportional to x squared.

When y is 100, x is 2. Find y when x is 4.

🖐🏼Work out 64^2/3