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spayn [35]
3 years ago
15

Is upside down triangle also polygon

Mathematics
2 answers:
Stolb23 [73]3 years ago
8 0
Yes because its is the same thing with a different view
Alex Ar [27]3 years ago
3 0
An upside-down triangle is a polygon. A polygon is a figure with at least <em>three</em> straight sides or angles. A triangle has three sides, so it would be classified as a polygon.

Your question asks if an <em>upside-down</em> triangle is a polygon. It is, because it is just upside-down, it is still a triangle. The placement of the shape or the way the shape is facing does not effect it's classification as a polygon. 
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Use formulas to find the lateral area and surface area of the given prism. Round your answer to the nearest whole number. The fi
mel-nik [20]

Answer:

Lateral Surface Area = 472 m²

Total Surface Area = 486m²

Step-by-step explanation:

The above prism is a Triangular prism

a) Lateral Surface Area = Perimeter of the Base × H

H = 29m

Perimeter of the Base = (7m + 7.28m + 2m)

= 16.28m

Lateral Surface Area = 16.28m × 29m

= 472.12 m²

Approximately to the nearest whole number = 472 m²

b) Total Surface Area

Triangular prism =

2 Triangles and 3 Rectangles

1st Triangle = 1/2 × base × Height

= 1/2 × 2m × 7m

= 7m²

2nd Triangle = 1/2 × base × height

= 1/2 × 2m × 7m

= 7m²

1st Rectangle = Length × Width

= 29m × 2m = 58m²

2nd Rectangle =

Length × Width

= 29m × 7.28m = 211.12m²

Length × Width

= 29m × 7m = 203m²

Total surface area = 7m² + 7m² + 58m² + 211.12m² + 203m²

= 486.12m²

Approximately to the nearest whole number = 486 m²

Option A is the correct option

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