pertanyaan:- berapa Panjang PQ
- luas belah ketupat
- luas belah ketupat
L = 120 cm²
Penjelasan dengan langkah-langkah:
s = K : 4
= 52 : 4
= 13 cm
(1/2 PR)² = s² - (1/2QS)²
= 13² - (1/2 x 10)²
= 169 - 5²
= 169 - 25
= 144
1/2 PR = √144
= 12
PR = 12 : 1/2
= 12 x 2/1
= 24 cm
L = 1/2 x d1 x d2
= 1/2 x QS x PR
= 1/2 x 10 x 24
= 120 cm²
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