Write the equation of this circle in standard form.

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle