Question

answer me quickly plzzzzzz​

Answer 1

Step-by-step explanation:

Q 4.

Area of square :

$\implies$ $\sf{A=l^2 }$

$\implies$ $\sf{A=40×40 }$

$\implies$ $\sf{A=1600cm^2 }$

To find side of triangle :

$\because$$\sf{A\:of\: Square=A\:of\: Triangle}$

$\implies$ $\sf{A={\Large\frac{1}{2}}×b×h }$

$\implies$ $\sf{1600={\Large\frac{1}{2}}×b×64 }$

$\implies$ $\sf{b={\Large\frac{1600}{64}} }$

$\implies$ $\boxed{\sf{Side=50\:cm }}$

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Q 5.

Area of rectangular field :

$\implies$ $\sf{A=l×b }$

$\implies$ $\sf{A=28×18 }$

$\implies$ $\sf{A=504\:m^2 }$

Area of triangular flower bed :

$\implies$ $\sf{A={\Large\frac{1}{2}}×b×h }$

$\implies$ $\sf{A={\Large\frac{1}{2}}×7×6 }$

$\implies$ $\sf{A=21\:m^2 }$

No. of flower beds to be laid :

$\implies$ $\sf{No.\:of\:flower\:beds={\Large\frac{A\:of\: rectangle}{A\:of\:triangle\:beds}} }$

$\implies$ $\sf{{\Large\frac{504}{21}} }$

$\implies$ $\boxed{\sf{24\:flower\:beds }}$

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