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aleksklad [387]
3 years ago
10

Please help idk how to find the surface area of this triangular prism

Mathematics
2 answers:
Olin [163]3 years ago
7 0

1/2 bxh - b = base h = height

so 8cm (height) × 26cm (base) × 12cm (also base) = something something × 1/2 = answer...or ÷ 1/2 I forgot but its something like that I think. bruh just ask whoever's in the house lol

ra1l [238]3 years ago
5 0

Answer:

you have to find the area of the rectangle at the bottom and then find the area of the 2 long triangles and the 2 small triangles and add them together

Step-by-step explanation:

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Musah's final point from the centre = 60.355 steps

Step-by-step explanation:

From the given information:

Musah stands at the centre of a rectangular field. He first takes 50 steps north, then 25 steps west and finally 50 steps on a bearing of 315°

The sketch for this information can be seen in the attached file below.

How far west is Musah's final point from the centre?

In order to determine how far west  is Musah's,

Let d be the distance of how far;

Then d = QR + RS cos θ

In the North West direction,

cos θ = cos 45°

d = 25 + 50( cos 45°)

d = 25 + 50( \dfrac{1}{\sqrt{2}} )

d = 25 + 50( 0.7071)

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Musah's final point from the centre = 60.355 steps

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