Question

what is the answer plz tell​

Answer 1

Answer:

x = 15, y = 8, z = 9, p = 8, q = 8 and r = 17

Step-by-step explanation:

Given question:

To find values of x, y, z, p, q and r

Euler's Formula:

Face + Vertices = Edges + 2

Solution:

1) Edge = x

So,

7 + 10 = x + 2

=> x = 17 - 2

=> x = 15

2) Face = y

So,

y + 12 = 18 + 2

=> y = 20 - 12

=> y = 8

3) Vertices = z

So,

9 + z = 16 + 2

=> z = 18 - 9

=> z = 9

4) Vertices = p

So,

6 + p = 12 + 2

=> p = 14 - 6

=> p = 8

5) Face = q

So,

q + 6 = 12 + 2

=> q = 14 - 6

=> q = 8

6) Edge = r

So,

8 + 11 = r + 2

=> r = 19 - 2

=> r = 17

Result:

Hence we got,

x = 15, y = 8, z = 9, p = 8, q = 8 and r = 17 (Ans)