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marishachu [46]
3 years ago
10

And breadth 415 m. What

Social Studies
1 answer:
Komok [63]3 years ago
3 0

Answer:

1) 90m^3

2) 16 m

Explanation:

1)

The hole in the ground has the shape of a prism, so its volume can be calculated as the volume of a prism:

V=lwh

where:

l is the length

w is the width

h is the height of the prism

For the hole in this problem, we have:

l = 5 m (length)

w = 3 m (width)

h = 6 m (height)

Therefore, the volume of the hole (and of earth removed) is

V=5\cdot 3 \cdot 6 =90 m^3

2)

The base of the room in this problem has the shape of a rectangle, so we can write its area s

A=lw

where:

l is the length

w is the width (breadth)

For the room in this problem, we have:

A=96 m^2 is the area of the base of the room

w = 6 m (breadth)

Therefore, the length of the room can be found by re-arranging the equation:

l=\frac{A}{w}=\frac{96}{6}=16 m

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