Required area of shaded portion
= Area of square ABCD - 4 × area of one quadrant

Answer:
The answer is 20
Step-by-step explanation:
Reasoning it is correct because for questions like this the bottom numbers for each shape are 10 and 8 they are very close to each other on the number line there fore since the number is two off you subtract 2 and then two again since it is 2 off to get 21 the closest answer is 20
It is a little confusing but since it is two places off you subtract two twice
the answer for the second problem is x=99 degrees and y= 261 degrees
dunno the first problem :/
Well if the cubic unit is one, then we can assume that the domain is -1<0
Answer: 12 - 4 = 8
Step-by-step explanation: