R+\frac{3Q}{h}=
r+
h
3Q

=
\,\,t
t

Your answer would be ahere is how: perimeter is how long all the sides are. in a rectangle, there are two sets of parallel sides. so, to find this, we would to the following.(15x2)+(4x2)30+838if you have questions ask! and mark me brainliest! i really wanna level up : 3

Sin(a)+cos(a)+cot(a)-1=2(csc(x)+1)