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6. The area of a cover of the book is 144 sq. cm & Breadth= 8 cm, find the perimeter of
the cover of book?
7. Fill in blanks
Answers
Answered by
0
Answer:
follow the steps
Step-by-step explanation:
breadth =side*side
=8*8=64
book =144*64=9216
Answered by
0
Step-by-step explanation:
area of book= 144 cm²
breadth (b) = 8 cm
length (l) = ?
we know that,
area of rectangle = length×breadth
144 cm² = length × 8 cm
144 cm²÷8 cm = length
18 cm = length
we know that,
perimeter of rectangle = 2×(l+b)
= 2×(18cm+8cm)
= 52 cm
hence, the perimeter of cover of book is 52 cm.
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