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Ristküliku ümbermõõt ja pindala. Leia ümbermõõt. 5 cm. 10 cm. 30 cm. 50 cm. 15 cm. 25 cm. Leia ümbermõõt. 6 cm. 11 cm. 14 cm. 66 cm. 17 cm. 34 cm. Leia ümbermõõt. 2 cm. 8 cm. 1 0 cm. 16 cm. 15 cm. 20 cm. Leia ümbermõõt. 8 cm. 12 cm. 30 cm. 40 cm. 96 cm.
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Leia ümbermõõt 5 cm 10 cm 30 cm 50 cm 15 cm 25 cm
Leia ümbermõõt 6 cm 11 cm 14 cm 66 cm 17 cm 34 cm
Leia ümbermõõt 2 cm 8 cm 10 cm 16 cm 15 cm 20 cm
Leia ümbermõõt 8 cm 12 cm 30 cm 40 cm 96 cm 20 cm
Leia ümbermõõt 3 cm 7 cm 30 cm 21 cm 20 cm 10 cm
Leia pindala 5 cm 10 cm 30 cm² 50 cm² 15 cm² 25 cm²
Leia pindala 4 cm 9 cm 30 cm² 26 cm² 13 cm² 36 cm²
Leia pindala 2 cm 4,5 cm 18 cm² 13 cm² 6,5 cm² 9 cm²
Leia pindala 6 cm 12 cm 30 cm² 72 cm² 18 cm² 36 cm²
Leia pindala 5,5 cm 10 cm 55 cm² 31 cm² 15,5 cm² 25 cm²
Leia pindala 2 cm 25 cm 30 cm² 50 cm² 54 cm² 27 cm²
Leia ümbermõõt 5 cm 11 cm 16 cm 66 cm 55 cm 32 cm
Leia pindala 3 cm 5 cm 30 cm² 16 cm² 15 cm² 20 cm²
Leia ümbermõõt 4 cm 6 cm 30 cm 40 cm 24 cm 20 cm
Leia pindala 3 cm 10 cm 30 cm² 21 cm² 20 cm² 10 cm²
Leia pindala 2 cm 12,5 cm 30 cm² 14,5 cm² 35 cm² 25 cm²
Leia pindala 2 cm 13 cm 30 cm² 26 cm² 15 cm² 36 cm²
Leia pindala 1,5 cm 6 cm 7,5 cm² 13 cm² 15 cm² 9 cm²
Leia pindala 1,5 cm 12 cm 30 cm² 13,5 cm² 18 cm² 27 cm²
Leia ümbermõõt 7,5 cm 10 cm 75 cm 30 cm 17,5 cm 35 cm
L.O. Investigating ümbermõõt - Leiaing all possibilities A farmer has a goat pen which uses 36 m of fencing. One night, during a storm, the goat pen is destroyed.
The farmer wants to re-build the rectangular goat pen, but has only 36m of fencing and cannot remember the exact dimensions from the first pen. Can you help ? Remember: • the pen is rectangular • only 36m of fence can be used
L.O. Solving mathematical puzzles and problems Farmer Brown Leias some extra fencing. He builds a rectangular enclosure like this…… 4 + 20 + 4 + 20 His daughter, Nita, builds another enclosure with the ümbermõõt of…. 7 + 17 + 7 + 17 How much fencing have they used ?
Mr Brown says to Nita, “That’s not right. Your goat has got more grass to eat than mine.” Nita replies,” That can’t be true. Mine can’t have more grass because we both used the same amount of fencing.” Have both goats got the same amount of grass? Mr Brown and Nita need to Leia out how to make the rectangle of fencing using 48m so that each of their goats gets the greatest amount of grass possible. Can you help them?