11 Reasons to Become Race Literate: A pocket guide to a new conversation

11 Reasons to Become Race Literate: A pocket guide to a new conversation

» » Matematika please bantu jawab dong​

Matematika please bantu jawab dong​

–
please bantu jawab dong​

Jawaban:

60 cm

Penjelasan dengan langkah-langkah:

K= AB+BC+CD+DA

atau

K = 2(a+b)

K = 2(18+12)

K = 2(30)

K = 60cm

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