dancingswan
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Answer please and leave an explanation too! thank you!
1. If the arc angle of a sector is doubled, then the area of the sector......
A. is half
B. remains the same
C. doubles (increases by a factor of two)
D. triples (increases by a factor of three)
E. quadruples (increases by a factor of four)

2. If the radius of a sector is doubled, then the area of the sector......
A. is half
B. remains the same
C. doubles (increases by a factor of two)
D. triples (increases by a factor of three)
E. quadruples (increases by a factor of four)

Respuesta :

evgeniylevi

Answer:

1-C; 2-D.

Step-by-step explanation:

0) the common formula is:

area=π*r²;

1) according to the formula above the area of the sector C. doubles (increases by a factor two);

2) according to the formula the area of the sector D. quadruples (increases by a factor four).

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