Answer:
Icosahedron
Step-by-step explanation:
Icosahedron has 20 faces and all the faces are equilateral triangle. Also the faces are congruent and the Icosahedron is one of the five Platonic solids.
-23
Answer: 30,000
Round 5 up to 10 25000 to 30000
0.00000797
Answer:add 3+5+7