Page 4 1 (1) 24 (2) 2460 (3)1103.4cm (4) 78.5% 63.7% (5) 314 (6)
C = 12+ 15+9 = 36s = ah÷2 = 9× 12÷2 = 54c =(2.4+ 1.8)×2 = 8.4s = ah = 2.4× 1.5 = 3.6
This is the wall built.
From bottom to top.
1
1/2? 1/2
1/3? 1/3? 1/3
1/4? 1/4? 1/4? 1/4
1/5? 1/5? 1/5? 1/5? 1/5
1/6? 1