Question

Find the Perimeter and area :

a) Length = 8 mm Breadth = 15 cm

b) Length = 5 cm Breadth = 7.5 cm​

Answer 1

Step-by-step explanation:

$(a). \: \: perimeter = 2 \times (8cm + 15cm) \\ = 2 \times 23cm = 46 \: cm \\ \\ area = 8cm \times 15cm \\ = 120 {cm}^{2}$

$(b). \: \: parimeter = 2 \times (5 + 7.5)cm \\ = 2 \times 12.5cm \\ = 25 \: cm \\ \\ area = 5cm \times 7.5cm \\ = 37.5 \: {cm}^{2}$

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