Question

No 21 dan 22 jawaban serta cara

Answer 1

21.
CD = 17cm
BC = 22cm
AF = 14cm
EC = 21cm
OF = BC - AF
= 22 - 14
= 8cm
OC² = CD² - OF²
= 17² - 8²
= 289 - 64
= 225
OC = √225
OC = 15cm
EO = EC - OC
= 21-15
=6cm
ED² = DO² + EO²
= 8² + 6²
= 64 + 36
= 100
ED = √100
ED = 10cm
keliling ABCDEF :
AB + BC + CD + DE + EF + AF
= 15+22+17+10+10+14
= 88cm

Semoga bermanfaat.
Maaf untuk nomor 22 saya masih mencoba^^