1. A pentagonal pyramid has 6 faces, 10 edges, and 6 vertices
2. The polygons you would need to construct a pentagonal pyramid are a triangular or rectangular pyramid. Or probably just a triangle and a pentagon (I’m not sure, hope I helped)
Answer:
(D) and nice work with me in both of this ok meaning made by my lines
Answer:
Step-by-step explanation:
multiply each side by 
which comes out to
The angles of the triangle are given as to have measures of 45°-45°-90°. This entails that the triangle is an isosceles triangle where the 2 legs of the triangle are of equal length. We calculate as follows:
c² = a² + b²
c² = 2a²
4² = 2a²
a = 2√2
Hope this answers the question.
Just divide 5/4 = 1.25. Thank you.
