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Monica [59]
3 years ago
10

a pyramid has a rectangular base of side 16m by14m. Given that the volume of the pyramid is 700m cube, find its height and surfa

ce area​
Mathematics
1 answer:
maw [93]3 years ago
4 0

Answer:

Height of the Pyramid = 3.125 m

The surface area of the pyramid is 635.5 sq. meters

Step-by-step explanation:

Here, the length  and width of the rectangle =  16 m and 14 m

Let the height of the pyramid  = h m

Volume of the pyramid = 700 cubic meters

Volume of Rectangular Pyramid  =  Length  x Width x Height

or, 700   =  16 x  14 x h

or, [tex]h = \frac{700}{14 \times 16} = 3.125[/t)ex]

or, the Height of the Pyramid = 3.125 m

Now, the Surface area of Rectangular Pyramid   =  2( LW + WH + HL)

Here, Surface Area  =  2 ( (16  x 14 ) + (14 x 3.125) + (3.125 x 16))

= 2( 224 + 43.75 + 50)  = 2 x  317.75

or, Surface Area =  635.5 sq. meters

Hence, the surface area of the pyramid is 635.5 sq. meters

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Answer:

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Step-by-step explanation:

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4 years ago
An automatics air freshener releases droplets into the air to improve the smell of a living room. At 30 minutes, the canister ha
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Answer:

The equation is;

y = -1/4x + 607.5

Step-by-step explanation:

Let us have the number of drops as y axis while the number of minutes is x axis

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The slope can be calculated using;

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= (575-600)/(130-30) = -25/100 = -1/4

So the equation as we model using the normal equation of a straight line (y = mx + c, m is slope and c is the intercept)

y = -1/4x + c

To get c, we simply substitute one point

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600 = -1/4(30) + c

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3 years ago
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A

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