What is the area of the shaded region?

330.00cm²

Step-by-step explanation:

find the area of both circles and subtract the smaller one from the bigger one.

area of a circle= πr²

π wasn't given so I will use 22/7

so area of the bigger circle = 22/7 × 11²

=22/7 × 121

=380.28cm²

area of the small circle=22/7 × 4²

= 22/7 × 16

= 50.28cm²

Area of the shaded portion = 380.28 - 50.28

= 330.00cm²

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

what's the question?

step-by-step explanation:

there is no question.