Question 1025561
.
S=smaller angle; L=larger angle=2S+21 degrees
.
S + L = 90 degrees
S + (2S+21 degrees) = 90 degrees
3S + 21 degrees=90 degrees
3S = 69 degrees
S = 23 degrees 
.
ANSWER: The measure of the smaller angle is 23 degrees.
.