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Tamiku [17]
3 years ago
13

A circle has a diameter of 28 ft. What is the circumference?

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
4 0
<span>circumference of a circle   = TT x d                 where TT= 3.14 

c= 3.14 x 28 = 87.92 ft</span>
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The volume of a rectangular pyramid is 900 cubic centimeters.It has a length of 10 centimeters and a width of 9 centimeters. Wha
MariettaO [177]
The height of a rectangular pyramid is 30 cm.

volume of rectangular pyramid = (length x width x height) / 3

Given: 
Volume = 900 cm³
Length = 10 cm
Width = 9 cm
Height = ?

V = lwh/3
900 cm³ = (10cm * 9cm * h)/3
900 cm³ * 3 = (90cm² * h)/3 * 3
2700 cm³ = 90cm² * h
2700 cm³/90cm² = 90cm² * h/90 cm²
30 cm = h

to check:
900 cm³ = (10 cm * 9 cm * 30 cm)/3
900 cm³ = 2700 cm³/3
900 cm³ = 900 cm³
3 0
3 years ago
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Step-by-step explanation:

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