Question

3) Write the following ratios in the reduced form.
Radius to the diameter of a circle.
a) The ratio of diagonal to the length of a rectangle, having length 4 cm and bread
3 cm
m The ratio of perimeter to area of a square, having side 4 cm.
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Answer 1

(3)Radius=2Xdiameter

=> radius:diameter=1:2

(a)diagonal of rectangle of length 4cm and breath 3cm

=>

$\sqrt{4 { }^{2} { + 3}^{2} }$

$\sqrt{16 + 9}$

$\sqrt{25}$

5 cm

now required ratio is diagonal:length

=> 5:4 (ans)

(b) perimeter = 4s=> 4X4=16

area=

$x {}^{2}$

=4X4=16

therefore, required ratio

16:16 or 1:1

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