Question 682041
the ratio of the measure of two complementary angles is 7:3. Find the measure of each angle.
Solution:
Let x be the common ratio , 
since we have given that ratio between the complementary angle is 7:3
then the two angle are 7x , and 3x 
complementary angle means sum of two angles is 90 degree. 
hence 
7x + 3x = 90 
combining the like terms we get  
10x = 90 
x = 90/10 
x= 9 
hence two angles are : 
7x = 7(9) = 63 degree
3x = 3 ( 9) = 27 degree

Thanks regards