Answer:
7.5 is the answer to this
Answer:
The lateral area is
Step-by-step explanation:
we know that
The lateral area of a right prism is equal to
where
P is the perimeter of the base of the prism
H is the height of the prism
in this problem we have
substitute
Answer:
156 [in²].
Step-by-step explanation:
1) total area consists of six parts (all the details are in the attachment):
A=2A₁+2A₂+A₃+A₄;
2) according to the formula above:
A=2*5*3+2*0.5*(6+12)*4+6*3+12*3=156 [in²].