Answer:
6
Step-by-step explanation:
X/126=1/21
X=126/21
X=6
is it right?
The answer is 28. Hope it helps :D
28
21/2 * 8/3 = 28
c and d
using the two angles in the triangle, 1 and 2, it can be 180- the sum of angles 1 and 2, which is c. using angle 4, it can also be 180 - the equation for angle 4
