If the area of a circle is 614.44 what is the diameter

The diameter is equal to 27.96

Step-by-step explanation:

Area of a circle = πr²

Since the area is given as 614.44, and π is a constant which is equal to 3.142  , so we will find the value of r

Area of a circle = πr²

614.44 = 3.142r²

Divide both-side of the equation by 3.142

614.44/3.142 = 3.142r² /3.142

195.56 = r²

Take the square root of both-side

√195.56 = √r²

13.98 = r

But diameter = 2r

                      = 2(13.98)

                        =27.96

Therefore the diameter is equal to 27.96

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this

idk

step-by-step explanation: