2 1/8 estimate to 2
5/7 estimate to 1.
2-1=1
You can use Euler's Polyherdron Formula as seen here;
https://plus.maths.org/content/eulers-polyhedron-formula
The number of vertices minus the number of edges plus the number of Faces will equal 2.
V - E + F = 2
V - 36 + 25 = 2
V = 13
Answer:
x = 12
Step-by-step explanation:
Lets set up the equation!
Complementary angles equal 90 degrees.
2x + 20 + 3x + 10 = 90
Now lets combine the like terms!
2x + 3x 20+ 10
5x +30 = 90
Now subtract 30 from both sides!
5x = 60
Divide each side by 5
x = 12
Brainliest is appreciated!