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AnnZ [28]
2 years ago
12

This is k 12 help, please!!! for (100 points)

Mathematics
2 answers:
Gennadij [26K]2 years ago
6 0

Answer:

14 m²

area of sqaure pyramid: a² + 2(a)(l)

  • a = side of the base
  • l = slant height

area:

  • (2)² + 2(2)(2.5)
  • 14 m²
Vlad1618 [11]2 years ago
3 0

Answer:

3rd option - 14 m²

Step-by-step explanation:

First we know that the square's area will be 2×2 = 4

To calculate the area of a triangle we know the vertical height is 2.5 and the base length is 2 so we can use the formula b×h/2 to give the area of one triangle:

2.5×2 = 5

5÷2 = 2.5

So the area of 1 triangle is 2.5 m²

Since there are 4 triangles we multiply the area of 1 traingle by 4:

2.5×4 = 10

We add the area of the 4 triangles to the area of the square to give our final answer of :

10 + 4 = 14

14 m²

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nasty-shy [4]

<u>To find the density:</u>

 ⇒ must find the relationship between the density, mass, and volume

    ⇒ Density = \frac{mass}{volume}

<u>Let's examine the information given:</u>

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<u></u>

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