Question

Calculate the area and perimeter of the following ring where a = 7cm, b = 14cm

Answer 1

Step-by-step explanation:

perimeter=2(l+b)

2(7cm+14cm)

2×21cm

42cm

area=l×b

7cm×14cm

98cm^2

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Answer 2

Answer:

perimeter of rectangle = 2 x length + 2 x breadth

= 2x 7 + 2x 14

= 14 + 28

= 42 sq cm

Area of rectangle = length x breadth

= 14 x 7

= 98 cm