1. 20 cm x 14 cm = 280 cm
2. 16 dm x 7 dm = 112 dm
3. 10 dm x 14 dm = 140 dm
4. 10 cm x 50 cm = 500 cm
Semoga membantu dan bermanfaat
1. Lp = 2πr (r + t)
= 2 x 22/7 x 14 (14 + 20)
= 88 (34)
= 2.992 cm²
2. Lp = 2πr (r + t)
= 2 x 3,14 x 3,5 (3,5 + 16)
= 21,98 (19,5)
= 428,61 dm²
3. Lp = 2πr (r + t)
= 2 x 22/7 x 7 (7 + 10)
= 44 (17)
= 748 dm²
4. Lp = 2πr (r + t)
= 2 x 3,14 x 5 (5 + 50)
= 31,4 (55)
= 1.727 cm²
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1. 20 cm x 14 cm = 280 cm
2. 16 dm x 7 dm = 112 dm
3. 10 dm x 14 dm = 140 dm
4. 10 cm x 50 cm = 500 cm
Semoga membantu dan bermanfaat
1. Lp = 2πr (r + t)
= 2 x 22/7 x 14 (14 + 20)
= 88 (34)
= 2.992 cm²
2. Lp = 2πr (r + t)
= 2 x 3,14 x 3,5 (3,5 + 16)
= 21,98 (19,5)
= 428,61 dm²
3. Lp = 2πr (r + t)
= 2 x 22/7 x 7 (7 + 10)
= 44 (17)
= 748 dm²
4. Lp = 2πr (r + t)
= 2 x 3,14 x 5 (5 + 50)
= 31,4 (55)
= 1.727 cm²