Answer:
The shape includes a curve; all polygons are supposed to have straight sides, which this shape does not.
Answer: He is 18 years old right now.
Step-by-step explanation:
Let the present age of Ishaan be x
After 36 years,
his age will be x+36
According to question,
it is mentioned that Ishaan will be 3 times as old as he is right now ,
So, we will frame it in equation:

Hence, he is 18 years old right now.
All of your solution is right
The actual speed of the plane with the wind:
v² = ( 150 + 50 · cos 45°)² + ( 50 · sin 45°)²
v² = ( 150 + 35.355 )² + 35.355²
v² = 34,356.467 + 1,249.976
v = √35,606.452
v = 188.7 mph
Percent mean parts out of 100
0.2%=0.2/100=0.02/10=0.002/1=0.002
'of' means multiply
'what number'=x
'is' means '='
so
0.2% of what number is 12
0.002 times x=12
divide both sides by 0.002
x=6000
the number is 6000