Question

25,26 pakai cara,jawaban terbaik (jangan ngasal ya)

Answer 1

25.L=1/2πr² r=1/2d=1/2.20=10
=1/2.3,14.10²
=1/2.314
=157 m²(A)
26.L1=s²=7²=49 cm²
L2=(alas+atas)t/2 t=15-7=8 cm
=(7+12)8/2
=19.4=76 cm²
Ltotal=49+76=125 cm²(C)