A. 6, 7, 8, 9
B. 2, 5, 8, 11
C. 5, 8, 13, 20
D. 3, 12, 27, 48
Answer:
It has exactly four faces that are triangles.
It has 4 vertices.
It has 6 edges.
Step-by-step explanation:
A triangular pyramid is also termed as a tetrahedron.
The properties of a triangular pyramid include:
- four triangular faces,
- six edges
- four vertex corners.
Among the four faces, any one of them can be considered to be the base of the pyramid.
The faces are of equal shape and size.
The edges have the same length.
The triangles are equilateral.
Ok so if I understand this correctly then you have to find out what each one of them are then add them to get the total number of both of them. So this is the equation I did. The one circled on blue is the formula I made for the equation and then the green one is the answer. which is 5 4/9
I hope this helps.
<h2>
Answer:</h2>
<u>The frequency is</u><u> 2Hz</u>
<h2>
Step-by-step explanation:</h2>
Using the formula
<h3>Wavelength = speed / Frequency</h3>
Arranging the equation
Frequency = Speed / Wavelength
Frequency = 200 / 100
Frequency = 2 Hz
