A square and a rectangle have equal area.The rectangle is 64 cm by 81 cm. What is the perimeter of the square?
1 answer:
Answer:
2592 cm
Step-by-step explanation:
square area = x²
rectangle area = bh
so
x² = bh
since the areas are equal
b and h are in the problem as 64 and 81
x² = 64x81
x² = 5184
divide by 2
x = 2592 cm
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