tolong y pakai cara no.20 sm no. 22 makasih

1. Rumus kel Trapesium = DE + EF + FG + DG
= 42 + 20 + 18 + 20
= 100

2. Persegi = P x l = 22 x 6 = 132c
Bulat sempurna = 22/7 x r x r
Bulat dipotong (s'tengah = 1/2 )
= 1/2 x 22/7 x 14 x 14
= 308. = Persegi + S'tengah Bulat/lingkaran = 308 + 100 = 408