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o-na [289]
2 years ago
8

Find surface area of the right angled triangular prism.

Mathematics
2 answers:
valentinak56 [21]2 years ago
7 0

Answer:

SA=504\text{ cm}^2

Step-by-step explanation:

We have been given an a right angled triangular prism. We are asked to find the surface area of our given prism.

We will use surface area of right prism formula to solve our given problem.

SA=2B+Ph, where,

SA = Surface area,

B = Area of right triangular base,

P = Perimeter of right triangular base,

h = Height of prism.

Let us find area of of triangular base.

B=\frac{1}{2}\times 9\times 12

B=9\times 6

B=54

The perimeter of triangular base would be 9+12+15=36.

Upon substituting our given values, we will get:

SA=2(54)+36(11)

SA=108+396

SA=504

Therefore, the surface area of our given prism is 504 square cm.

jeka57 [31]2 years ago
6 0
A triangular prism<span> has 5 faces, 3 being rectangular and 2 being </span>triangular<span>. The </span>area<span> of the rectangular faces can be found by multiply the base and height lengths together. The </span>area<span> of the </span>triangular<span> faces can be found by multiplying the base and height and dividing by 2.</span>
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Two identical triangles form a parallelogram with a base of 8 Inches and a height of 6 inches.What is the area of one triangle?
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Answer: The area of the triangle is 24 square inches

Step-by-step explanation:

Hi, since the 2 triangles form a parallelogram ( see attachment) we have the base and height of the triangles, we have to apply the next formula:

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An architect plans to build an extension to​ Meiling's rectangular deck. Let x represent the​ increase, in​ meters, of her​ deck
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Complete question is;

An architect plans to build an extension to meiling's rectangular deck. Let x represent the increase, in meters, of her deck's length. The expression 4(x+8) represents the area of the deck, where 4 is the width, in meters, and (x+8) represents the extended length, in meters. Use distributive property to write an expression that represents the total area of meilings new deck.

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Step-by-step explanation:

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