I just took the test with that question it is that hopefully it helps
A 565 cm
This goes with the first one . it is half the area of a rectangle of side 2 and 3 units
To solve the question we shall use the formula for the range given by:
Horizontal range, R=[v²sin 2θ]/g
plugging in our values we get:
500=[160²×sin 2θ]/10
5000=160²×sin 2θ
0.1953=sin 2θ
thus:
arcsin 0.1953=2θ
11.263=2θ
hence:
θ=5.6315°~5.63
Perimeter is 28 and area is 32