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Grace [21]
3 years ago
7

What is the LATERAL surface area of the rectangular pyramid below???

Mathematics
2 answers:
kherson [118]3 years ago
5 0

684 ft²

Area of rectangle :-

A = 18 ft * 20ft

A = 360 ft²

Area of 2 triangles :-

A = 2 * 8ft * 18 ft * 1/2

A = 144 ft²

Area of 2 triangles :-

A = 2 * 1/2 * 9ft * 20ft

A = 180 ft²

Total Area :-

A = ( 360 + 144 + 180 ) ft²

A = 684 ft²

emmasim [6.3K]3 years ago
4 0

Answer:

684 sq.ft

Step-by-step explanation:

(1) The base area of the pyramid is 18x20=360 sq.ft

(2) The Triangles of the pyramid:

  1. There are two kinds of the triangles.

  2. Smaller one: 18x8/2 (base times height divide 2)=72 sq.ft

  3. Bigger one: 20x9/2=90 sq.ft

  4. There are two of them so 72+72+90+90=324 sq.ft

And so 360+324=684 sq.ft.

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Fixed costs are $3,000, variable costs are $5 per unit. The company will manufacture 100 units and chart a 50% markup. Using the
dmitriy555 [2]

Answer:

1. Using the cost-plus pricing method, the selling price = $5.25

2. The change in selling price from 2018 to 2019 is $3.69 or 33.5% reduction.

3. To break-even, unit sales = 4,000 units

To realize a target return of $200,000, the unit sales = 5,600 units

4. Units to break-even = 12,500 meals

Sales revenue at break-even point = $125,000

Step-by-step explanation:

a) Data and Calculations:

Fixed costs = $3,000

Variable costs per unit = $5

Units manufactured = 100 units

Total variable costs = $500 ($5 * 100)

Total costs = $3,500 ($500 + $3,000)

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Using the cost-plus pricing method, the selling price = $5.25 ($3.50 * 1.5)

b) Fixed costs per year = $150,000

Variable costs per unit = $3

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Total variable costs = $90,000 ($3 * 30,000)

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Cost per unit = $8 ($240,000/30,000)

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Change in selling = $3.69 ($11 = $7.31) = 33.5%

c) Fixed costs = $500,000

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