find the area of each of the following regions when [ a square is 1cm² ]
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Answer:
PERIMETER
(a) 25
(b) 18
AREA
(a) 31.5
(b) 20.25
Step-by-step explanation:
(a) Perimeter of rectangle= 2 ( L + B )
= 2 ( 9 + 3.5 )
= 2 × 12.5
= 25 ANS
(b) Perimeter of square = 4s
= 4 × 4.5
= 18 ANS
(a) Area of rectangle = L × B
= 9 × 3.5
= 31.5
(b) Area of square = s²
= 4.5 × 4.5
= 20.25
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