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A tower casts a shadow 7 m long.A vertical casts a shadow 0.6 m long.If the stick is 1.2 m high,how high is the tower?

Respuesta :

Answer:

Let the height of tower be h.

Given:

The shadow of tower is 7 m long,

the height of stick is 1.2 m and the shadow of stick is 0.6 m.

Use a proportion methods, to solve this problems:

[tex]\frac{Height of tower}{Shadow of tower} = \frac{Height of stick}{Shadow of stick}[/tex]

or

[tex]\frac{h}{7} = \frac{1.2}{0.6}[/tex]

Simplify:

[tex]\frac{h}{7} =2[/tex]

Multiply both sides by 7 we have;

[tex]\frac{h}{7} \times 7 = 2 \times 7[/tex]

Simplify:

h = 14 m

Therefore, the height of tower is, 14 m


The height of the tower that cast a shadow of 7m long is 14 meters.

Proportional relationship

Proportional relationships are relationships between two variables where their ratios are equivalent.

Let's establish a proportional relationship as follows:

tower shadow height = 7m

vertical stick shadow = 0.6m

vertical stick height = 1.2 m

height of the tower = x

Therefore,

7 / 0.6 = x / 1.2

cross multiply

1.2 × 7 = 0.6x

x = 8.4 / 0.6

x = 14 m

Therefore, the height of the tower is 14 meters.

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