3. The formula A=πr^2 was initially _____ of the rectangle.
*
1 point
A. A = 1/2 bh
B. A = 1/2 C ( r )
C. A = 1/2 LW
D. A = base x height
4. The radius of a circular swimming pool is 7 meters. What is its area?
*
1 point
A. 153.86 sq.m
B.152.86 sq.m
C.151.86 sq.m
D. 150.86 sq.m
5. Mother watered the circular flower garden whose diameter is 5 meters. What area of her lot is the flower bed?
*
1 point
A. 76.5 sq. m
B. 78.5 sq. m
C. 19.625 sq.m
D. 196.25 sq. m
6. A semi-circle doormat has a diameter of 3 feet. What is the area of the doormat?
*
1 point
A. 7.065 sq. ft
B. 70.65 sq. ft
C. 35.325 sq.ft
D. 3.5325 sq. ft
7. A bicycle wheel has a radius of 30 cm. What is the area of the wheel?
*
1 point
A. 2 826 cm2
B. 2 626 cm2
C. 2 626 cm2
D. 6 626 cm2
8. A circular garden has a diameter of 5 m. What is the area of the garden?
*
1 point
A. 7.85 m2
B. 78.5 m2
C. 19.625 m2
D. d. 196.25 m2