Tolong jawab sama cara nya…​

Jawaban:

A. s2 = s x s = 2a × 2a = 4a2 cm2

B. P × L = 3b × 3b = 9b2 cm2

C. 2 ( PL + PT + LT )

= 2 (3s.2s + 3s.3s + 2s.3s )

= 2 (6s + 9s + 6s )

= 2 ( 21s)

= 42s cm3