A solid has faces that consist of 5 congruent squares and 4 congruent equilateral triangles. The solid has 9 vertices. How many edges does the solid have? (no image)
A.
16 edges
B.
18 edges
C.
20 edges
D.
22 edges

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

Use\[v-e+f=2\]where v is no. of vertices, e is no. of edges, f is no of faces.

so 9- ? + 5 = 2 ?

Figure has 5 square faces PLUS 4 triangular faces, so 9 faces in total.

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.