A. 3√3a²/2
B. √3a²
C. 6a²
D. 2√3a²
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A. r
B. r²
C. r³
D. r⁴
A. 100
B. 144
C. 81
D. 64
A. √(l² + b² + h²)
B. l + b + h
C. lb + h
D. lbh
A. a/√3
B. a/2√3
C. √3a
D. a√3
A. Side × side
B. ½ × diagonals
C. Base × height
D. l × b
A. 30°
B. 45°
C. 60°
D. 90°
A. 98
B. 196
C. 49
D. 147
A. 24
B. 36
C. 48
D. 60
A. 5
B. √25
C. 5/2
D. √6.25
