A garden is rectangular shape of length of 13m and width 7m in
the middle and semi-circular of diameter 7m at the ends. Find
the total perimeter of whole garden
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ANSWER :-
Total area of the garden = Area of the rectangular portion + The sum of the areas of the pair of semi-circles
=l×b+ 2×1/2πr²
=(13×7)m² ( 2×1/2 ×22/7 × 3.5×3.5 ) m²
=(91+38.5) m² = 129.5m²
Perimeter of the garden =2× length of rectangular portion + circumference of the circle
= ( 2×13 + 2×22/7 ×3.5 ) m
= ( 26+22 ) m
= 48m
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