Respuesta :
Answer:
Total area to be painted = 154 in²
Step-by-step explanation:
Assuming that the total surface area of the prism will be painted,
Total Surface area of a rectangular prism with dimensions length x, width y and height z is given as
S = 2xy + 2yz + 2xz
The prism in question has lenght of 5 in, a width of 3 1/2 in, and a height of 7 in.
So, the total surface area to be painted will be
x = 5 in,
y = 3 1/2 in = 3.5 in
z = 7 in
S = 2xy + 2yz + 2xz
S = 2[(5)(3.5) + (3.5)(7) + (5)(7)] = 154 in²
Hope this Helps!!
Answer:
154 sq.inch
Step-by-step explanation:
In this question, we are asked to calculate the area of a rectangular prism, given some measurements of the prism in question.
Mathematically, to calculate this , we employ a mathematical formula.
Let’s say the area of the prism is A.
Then mathematically;
A = 2(wl + hl + hw)
Where w, h and l represents the width, height and length respectively.
These have the following values as deduced from the question;
w = 3.5 in, h = 7 in and l = 5 in
We put these values accordingly in the formula to yield;
A = 2(17.5 + 35 + 24.5)
A = 2(77)
A = 154 sq.inch
