if the diameter of a circle is increased by 6 cm, what is the incriase in the circumference of the circle?
1 answer:
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<u>Answer</u>:
Length of the envelope = 14
Width of the envelope = 5.6
<u>Step-by-step explanation:</u>
Let the width of the rectangle be x
Then the length of the rectangle will be
Also the length of the plastic band to cover the front and back of the envolpe =
To cover one side th band required is
=>
=>
=>
=>
=>39.4
We know that the perimeter of the rectangle is
=> 2( L + B) =
=> 2( ) = 19.7
=> 2(
=>
=>
=>
Now length of the envelope =
=>
=>
=> 14
She knows that
We know that V = a^3 and that it's 1000 cubic meters (or unit cubes as long as one unit cube is 1x1x1m). We can write the calculation as attached below. The result (dimensions of one cube house) is 10x10x10 meters.
