Plane Figure
[tex]\sf{1. \: Perimeter : 2(18 + 9) = 54 cm } \\ \sf{Area : 18 × 9 = 162 m²}[/tex]
[tex]\sf{2. \: Perimeter : (1) + 21 \times 2 = 38cm} \\ \sf{Area : \: 17 \times 2 = 34cm}^{2} [/tex]
[tex]\sf{3. \: Perimeter : 2(8 + 3) = 22cm } \\ \sf{ Area :8 \times 3 = 24cm}^{2} [/tex]
[tex]\sf{4. \: Perimeter :2(5 + 4) = 18m} \\ \sf{Area :5 \times 4 = 20m}^{2} [/tex]
[tex]\sf{5. \: Perimeter :2(13 + 2)=30m} \\ \sf{Area :13 \times 2 = 26m ^{2} }[/tex]
[tex]\sf{6. \: Perimeter :2(6 + 6) = 24cm} \\ \sf{Area :6 \times 6 = 36cm^{2} }[/tex]
[tex]\sf{7. \: Perimeter :2(7 + 5) = 24m} \\ \sf{Area :7 \times 5 = 35cm^{2} }[/tex]
