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2 years ago

A rectangle has a height of 3 cm and width of 5cm. A proportional rectangle has a height of 12cm. What would be the width?

Mathematics

2 answers:

mezya [45]2 years ago

6 0

Answer:

width=20 cm

Step-by-step explanation:

h=3 cm

w=5 cm

proportional rectangle:

height=12

Here height has become 12 by multiplying 3 by 4.Therefore to find the width do the same thing.

width=5*4

=20 cm

Schach [20]2 years ago

5 0

The ratio will be same

Let width be x

$\\ \sf\longmapsto \dfrac{3}{5}=\dfrac{12}{x}$

$\\ \sf\longmapsto 3x=5(12)$

$\\ \sf\longmapsto 3x=60$

$\\ \sf\longmapsto x=\dfrac{60}{3}$

$\\ \sf\longmapsto x=20cm$

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