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AVprozaik [17]
3 years ago
11

Which statement is true about all triangular pyramids? All the lateral faces in a triangular pyramid are congruent. All triangul

ar pyramids have three lateral faces. All triangular pyramids have five faces. All the faces in any triangular pyramid are equilateral triangles. AND ITS NOT C
Mathematics
2 answers:
Dafna11 [192]3 years ago
6 0

Answer:

I think it's A

Sorry if it's wrong though...

puteri [66]3 years ago
4 0

Answer:

All the lateral faces in a triangular pyramid are congruent.  

Step-by-step explanation:

  • A triangular pyramid is a pyramid that has a triangular-shaped base.
  • It has equilateral triangles which are equilateral.
  • The pyramid is also known as tetrahedron because the base is of triangular shape.
  • There are four faces and a triangular base in a triangular pyramid.
  • There are four vertices and six edges.
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Ilia_Sergeevich [38]

Answer:

∠U = 56.4

Step-by-step explanation:

We can use trigonometric functions to solve this

Here we are given the opposite side of ∠U as well as the adjacent side.

When dealing with the adjacent and opposite side we use sin

Sin = Opposite side / Adjacent side

Opp = 5 and adj = 6

So

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* take the inverse sine of both sides *

arc(sin)(u) = u

arcsin(5/6) = 56.4 *( rounded to the nearest tenth )

∠U = 56.4

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