Bantu ya kak :)
☺️☺️☺️
☺️☺️☺️
Penjelasan dengan langkah-langkah:
3. K PQRSTU = ....?
K PQ = 4 × s
= 4 × 12
= 48 cm
K RSTU = 2 (p + l)
= 2 (54 + 10)
= 2 (60)
= 120 cm
K PQRSTU = K PQ + K RSTU
= 48 + 120
= 168 cm
4. K ABCDE = ..... ?
K ABE = sisi + sisi + sisi
= 24 + 15 + 18
= 39 + 18
= 57 cm
K BCDE = 2 (p + l)
= 2 (24 + 18)
= 2 (42)
= 84 cm
K ABCDE = K ABE + K BCDE
= 57 + 84
= 141 cm
⇒ Semoga bermanfaat
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