Whoever gets this correct first gets brainlest

A = 6.3π units² or approximately 19.79 units²

Step-by-step explanation:

126°(π/180) = 0.7π radians

A = (½0.7π)3² = 3.15π units² ≈ 9.9 units²

it happens during combustion and impacts the environment because the plants and trees take in that and it can cause them to die.

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'.