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NeX [460]
3 years ago
5

What is the surface area of the square pyramid? A net has a square base with side lengths of 2, and 4 triangles with heights of

3. square units
Mathematics
2 answers:
Gelneren [198K]3 years ago
7 0

Answer:

16 units²

Step-by-step explanation:

Surface area

= square + 4 triangles

= 2² + 4(½ × 2 × 3)

= 4 + 4(3)

= 4 + 12

= 16

Bess [88]3 years ago
5 0

Step-by-step explanation:

<u>Step 1:  Find the surface area of the square</u>

Area = s^2

Area = 2^2

Area = 4

<u>Step 2:  Find the surface area of the triangles</u>

Area = (b * h) / 2

Area = (2 * 3) / 2

Area = 3

Area of four triangles = 4 * 3 = 12

<u>Step 3:  Combine the Area's</u>

Square + Four Triangles

4 + 12

16

Answer: 16 units^2

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pshichka [43]

Number of pounds of macadamia nuts is 8 pounds and number of pounds of almonds is 4 pounds.

<u>Step-by-step explanation:</u>

Step 1:

Given total pounds of mixture = 12 pounds, cost of macadamia nuts per pound = $9, cost of almonds per pound = $5.25, total cost of mixture per pound = $7.75.

Let number of pounds of macadamia nuts be x and number of pounds of almonds be 12-x.

Step 2:

Form an equation using the above information.

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