Answer:
9, 81
Step-by-step explanation:
Complementary angles add to 90
Let x = first angle
The other angle is 9x
x+9x = 90
10x = 90
Divide each side by 10
10x/10 =90/10
x = 9
The first angle is 9
The second angle is 9*9 =81
Answer:
The area is rational because the numbers in the formula are rational.
Step-by-step explanation:
All repeating decimals are still rational because they can be expressed as fractions. For example,

So every recurring decimal must be a fraction.
Also every terminating decimal can be represented as a fraction.
0.25 = 
So the area is rational because the numbers are rational.
Area =
X Base X Height
Base is Rational and Height is Rational. Hence Area=Rational.
When these rational numbers are substituted into the formula,the area must be rational.