This is the concept of algebra, we are required to approximate the arcsin of the value given using a calculator;
sin theta=[opposite]/[hypotenuse]
arcsin is the inverse of sin, thus;
arcsin(0.549)=33.2984
the answer is 33.3984°
The sum of 69,75,81,87,93,99 is 504.0.
0.80 because when you line up the decimals 0.80 is bigger
0.80
0.08
A 8 as the 2 labelled lengths will be the same; 2 x 8 = 16
1/7 of the dominoes will have the same number on both sides
