A. 10
B. 15
C. 20
D. 25
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A. πr²
B. 2πr
C. πd
D. r²
A. 44
B. 154
C. 308
D. 98
A. Side × side
B. ½ × product of diagonals
C. Base × height
D. 2 × diagonal
A. √3a²
B. a²
C. (√3/4)a²
D. (3/4)a²
A. 18
B. 27
C. 36
D. 45
A. Half
B. Same
C. Double
D. Four times
A. 48
B. 96
C. 24
D. 60
A. Base × height
B. Length × breadth
C. ½ × base × height
D. Side × side
A. 11
B. 12
C. 13
D. 14
