Answer:
50° & 90°
Step-by-step explanation:
it's a right angle triangles, so one must be 90°
Interior angles in a triangle add up to 180.
180 - 90 - 40 = 50°
Use my photo to see the work and answers! Hope this helped :)
What form does it need to be in? Percent ? (%)
Answer: 9 : 49
Explanation:

The Wise Orange knows that (L1/L2)² will give the ratio for the area and (L1/L2)³ will give the ratio for the volume.