28°
a triangle = 180°
180°-140°= 40°
180°-68°= 112°
180°-112°-40°= 28°
angles a and b are supplementary because they form a straight line
2/4 this is a half also known as 1/2 Hope this helps!!!!!!!!!!!!!!!!!!!!!!!!
Yes, they can. Rational numbers are also decimals (for example) so we can put an infinite amount of numbers between any 2 values, for example:
1,1
1,11
1,111
1,1111
2
5,328
5,3281
5,3282
50
90,01
90,011
etc.
