Respuesta :
The effect of the area of sector XYZ is that if the radius is doubled, the sector area will be 4 times greater.
How to find the radius of a sector?
The formula for finding the area of a sector is expressed as:
A = Ф/360 * πr²
If the radius is doubled, then;
A1 = Ф/360 * π(2r)²
A1 = Ф/360 * π(4r²)
Divide both equations to have:
A1/A = 4r²/r²
A1/A = 4
A1 = 4A
Hence the sector area will be 4 times greater.
Learn more on area of sector here: https://brainly.com/question/22972014