Answer:
4
Step-by-step explanation:
9 - 5 = 4
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:

Step-by-step explanation:
sin(
)
using the sides of the 30- 60- 90 triangle
with legs 1,
and hypotenuse 2 , then
= 30° and
sin30° = 
Answer:
option c is the correct answer
Step-by-step explanation:
∠YXZ+117°=180°
∠YXZ=180°-117°
∠YXZ=63°
63°+36°+∠YZX=180°(sum of angles is 180)
99°+∠YZX=180
∠YZX=180-99
∠YZX=81