To find the area of a triangle, you need the formula . A= b*h divided by 2
ANSWER
The smaller angle is

.EXPLANATION
Let the angles be

where y is the smaller angle.
Since they are supplementary, they will add up to 180°.
This implies that,

If one angle is 4 times the other, we can then write the following equation,

We put equation (2) into equation (1) to get,


We divide through by 5 to obtain,

This implies that,

Answer:

Step-by-step explanation:


The answer to this question is A
Answer:
52.5
Step-by-step explanation: