Answer:
The total surface area is 120 square cm
Explanation:
Surface area is the area of all the exposed sides all added together (like the bottom of the pyramid and one side of the cube don't count).
There are four sides on the pyramid. They look to be all the same.
Area_triangle
= 1/2 bh
= 1/2×4×5
= 10
Remember there are four of these triangles.
4×10
= 40
The area from the four triangular sides of the pyramid is in total, 40 square cm.
The other five sides of the shape are squares.
Area_square
= s^2
= 4^2
= 16
There are 5 sides that are this shape and size.
5×16
= 80
The area from the five square sides of the cube is in total, 80 square cm.
The total surface area is 40+80
= 120 square cm