|TRIGONOMETRIC FUNCTIONS| What's the perimeter and area of the hatched region? Thank you!
The length of [AB] = 10 cm.
The angle α = 60°
The length of [AB] = 10 cm.
The angle α = 60°
1 Answer
Jan 28, 2018
The area of the hatched region is
Explanation:
Let
Then,
The area of the triangle
Let the intersection of the arc with the hypotenuse of the triangle be
The angle
Then,
The area of the sector
The area of the shaded part is
The length of the arc
The length of the hypotenuse is
The perimeter of the shaded region is