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Area of shaded region is 18π square unit.
<u>Step-by-step explanation:</u>
Given :- A circle with center O and radius 9 cm
To Find :- area of shaded region that is area of ABC
Solution : - BC = 9 cm
∠ABC = 80° = Ф
so, area of sector = πr²Ф / 360°
= (π×9×9×80) /360°
= 18π square unit
hence, area of shaded region is 18π square unit
Answer:
The rocket reached its maximum height at 2 seconds.
The maximum height of the rocket is 36 yards.
Step-by-step explanation:
Quadratic equation:
In the format

The maximum height happens at the instant of time:

The maximu height is 
In this question:

So 
When did the rocket reach its maximum height?

The rocket reached its maximum height at 2 seconds.
What was the maximum height of the rocket?
H(2).

The maximum height of the rocket is 36 yards.