<span>Angle T = Angle C, let them equal x
So x + x + 140 = 180
2x = 40
x = 20
So Angle T = 20 degrees </span>
They all add up to 2.5 maybe u have to simplify?
The original number is 24
2 x 3 = 6
6 x 4 = 24
or
24 / 4 = 6
6 / 3 = 2
1: 8 faces and 9 with the base 9 vertices and 16 edges
2: 3 faces and 5 with the bases 6 vertices and 9 edges
3: 3 faces and 4 with the base 4 vertices and 6 edges
Hope this can help you.
40+3+.04+.003
expanded form is showing what you have to add together