a lawn sprinkler located at the corner of a yard is set to rotate through 90 degrees and project 30.0 feet. what area of lawn is watered by the sprinkler? round to the nearest whole

Step-by-step explanation:

Area of a circular sector

A circular sector is defined by a central angle θ and the radius of the circle r. The area of the circular sector is:

Note: θ must be expressed in radians.

The lawn sprinkler rotates θ=90° to an area of radius r=30 feet.

Expressing θ in radians:

The area is:

hence, the required result is

step-by-step explanation:

suppose we have two matrices a and b

we will assume the two matrices

we have to compute b-a which means subtracting corresponding elements of a from b.

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