1.
1 / 4 = 25 / 100 = 25%
2.
2²π / 4 + 4 × 2 = 4π / 4 + 8 = π + 8 cm²
3.
8² + 8² / 2 = 64 + 64 / 2 = 64 + 32 = 96 cm²
4.
8² / 2 = 64 / 2 = 32 cm²
5.
10² + 10² / 2 = 100 + 100 / 2 = 100 + 50 = 150 cm²
6.
64 / 2 = 32 cm²
7.
5²π / 2 = 25π / 2 = 12.5π cm²
8.
6² / 2 + 6² / 2 = 36 / 2 + 36 / 2 = 18 + 18 = 36 cm²
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1.
1 / 4 = 25 / 100 = 25%
2.
2²π / 4 + 4 × 2 = 4π / 4 + 8 = π + 8 cm²
3.
8² + 8² / 2 = 64 + 64 / 2 = 64 + 32 = 96 cm²
4.
8² / 2 = 64 / 2 = 32 cm²
5.
10² + 10² / 2 = 100 + 100 / 2 = 100 + 50 = 150 cm²
6.
64 / 2 = 32 cm²
7.
5²π / 2 = 25π / 2 = 12.5π cm²
8.
6² / 2 + 6² / 2 = 36 / 2 + 36 / 2 = 18 + 18 = 36 cm²