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= 169 - 25
= akar 144 = 12
PR = 2x = 12 × 2 = 24 cm
b. L = 1/2 × d1 × d2
= 1/2 x QS × PR
= 1/2 × 10 × 24
= 5 × 24
= 120 cm2
c. PT = 1/2 PR
= 1/2 × 24
= 12 cm
*maaf klo salah*
bener gak gini gambarnya? klo bener brarti jawaban tdi bener:)