Will the values described in each situation be rational or irrational?
select rational or irrational to describe each situation. i put "r" and "i" to represent the choices i choose.
the length of a rectangle with a rational area and irrational width
: r the area of a circle with a rational radius : r the perimeter of a square with irrational side lengths
: i the volume of a cube with rational side lengths : r

the length of a rectangle with a rational area and irrational width : Irrational (I)
the area of a circle with a rational radius : Irrational (I)
the perimeter of a square with irrational side lengths : Irrational (I)
the volume of a cube with rational side lengths: Rational (R)

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )

A: 18/15b : 7 - -8 = 15 , 12 - -6 = 18 the y variable always goes over the x variables, c : same thing a