If diagnols of quadrilateral bisect each other it must be parralogram? a) true b)false

If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram- This is true

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

i think it would be 42cm