Answer:
<h2>
43°</h2>
Step-by-step explanation:
The sum of measures of angles in triangle is 180°, so the measure of the ohter acute angle:
180° - 90° - 47° = 43°
Answer:
0.8
Step-by-step explanation:
-2.8 + 3.6 = 0.8
Answer:
25
Step-by-step explanation:
A-2: Project D.
b: Project A.
Not sure about a-1, hope I helped.