180 add 678 = 858
180 add 180 = 360
Well, what I do is i add 678 plus 300 in my head (this would equal 978) then add 3 (this would equal 981)
It is so easy using a calculator: 13123
Yes they do add up to 180.
8 x 214 = 1712 842 - 678 = 164 1712 + 164 = 1876
yes it add up to 180
The interior angles add up to (20-2)*180 = 18*180 = 3240 degrees.The interior angles add up to (20-2)*180 = 18*180 = 3240 degrees.The interior angles add up to (20-2)*180 = 18*180 = 3240 degrees.The interior angles add up to (20-2)*180 = 18*180 = 3240 degrees.
The three interior angles of a triangle add up to 180 degrees.
180 - 241 = -61Therefore, 241 + -61 = 180
Supplementary angles add up to 180 degrees and angles on a straight line add up to 180 degrees
Easy- use a calculator- 100+12345+678=13123
678/12.12 = 55.940594...678/12.12 = 55.940594...678/12.12 = 55.940594...678/12.12 = 55.940594...