rumus=jumlah sisi sejajar×1/2×t=30×1/2×?=300 m
300 m=1/2×30(15)×?
300:15=20 m
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rumus=jumlah sisi sejajar×1/2×t=30×1/2×?=300 m
300 m=1/2×30(15)×?
300:15=20 m