3 years ago

Helllp mee please I really do t understand

2 answers:

defon3 years ago

4 0

If you look at the shape you see it has four triangles just find the area of them then add them together.

answer 11.6 repeating or 11 and 2/3

ExtremeBDS [4]3 years ago

4 0

The correct ance is 11.6

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A triangular pyramid and its net are shown. Rain uses Calculations below to conclude that the surface area of a triangular pyram

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Answer:

Rain is correct, calculates correctly, 238.5 square inches

Step-by-step explanation:

The given triangular pyramid is shown with the dimensions.

The surface area of the triangular pyramid is given by :

$A=\frac{1}{2}\left(a \times b\right) + 3\left(\frac{1}{2}\times b\times s\right)$

$A=\frac{1}{2}\left(10 \times 8.7\right) + 3\left(\frac{1}{2}\times 10\times 13\right)$

$A=43.5+(3\times 65)$

$A=43.5+195$

$A=238.5 \ \text{inche}^2$

Therefore, the surface area of the triangular pyramid is = 238.5 square inches.

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3 years ago

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VMariaS [17]

Answer:

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Step-by-step explanation:

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1 year ago

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Solve the equations<br>Y=2x-4, 3x+y=1

liberstina [14]

Step-by-step explanation:

$y = 2x - 4$

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Equating,

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Placing it,

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