check the picture below.
so it has a base of 18x18 and a height of that much.

In this problem there might be a number that you need to add before the "( x 3)" then your answer will be 20 = 32 - 12 = 20
Angle is 90°
The sector is 1/4 th of circle
Area of sector
Triangle is right angled
Area
Area of unshaded region
- 4π-8
- 4(π-2)
- 4(3.14-2)
- 4(1.14)
- 4.56in²
Answer:
24.12-9.8=24.32
Step-by-step explanation:
hope this helps, sorry I'm bad at explaining, but just trust me it is this im 100% positive.