Question

PLEASE HELP, PAKAI CARA YA.​
YANG JAWAB DENGAN cara BAKAL SAYA FOLLOW

Answer 1

Tahap 1

Mencari panjang OE

OE =

=

=

=

= 4 cm

Maka, Panjang AE = 2 × 4 = 8 cm

Luas segitiga AFE = 1/2 × a × t

= 1/2 × AE × OF

= 1/2 × 8 × 6

= 8 × 3

= 24 cm²

Segitiga AOB = 1/2 × a × t

= 1/2 × 4 × 3

= 2 × 3

= 6 cm²

Luas jajargenjang = 1/2 × ( a + b ) × t

= 1/2 × (OD + BC) × BO

= 1/2 × ( 14 + 10 ) × 3

= 1/2 × 24 × 3

= 12 × 3

= 36 cm²

Maka, Luas bangunan = L Δ AEF + L Δ AOB + L trapesium

= 24 cm² + 6 cm² + 36 cm²

= 66 cm²

Pilihan : D

Simak lebih lanjut

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