Question

9. A rectangle has length (r2 + 4y 3) units
and breadth (-2r2 + y 3) units. What is
its perimeter?
2 x 4 - 2 + 4 – 6​

Answer 1

Answer:

p= 2( l+ b)

Step-by-step explanation:

p= 2[ r²+4y³ + (-2r² + y³) ]

p= 2(- r³ + 5y³ )

= -2r³ + 5y³

hope it helps you

Answer 2

Here, length of the given rectangle = (r²+4y³) unit

And breadth = (-2r²+ y³) unit

Then perimeter of the given rectangle

= 2*(length + breadth)

= 2*( r²+4y³+ -2r²+y³)

= 2*(r²-2r²+4y³+y³)

= 2*(-r²+5y^3)

= -2r²+10y³

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I hope it's helpful for you....