The tin game's surface area 177 inch².
Step-by-step explanation:
Step 1:
To calculate the triangular prism's surface area, we calculate the areas of all the 5 sides.
We divide the prism into 2 triangles and 3 rectangles, find the area individually and then sum them all up in order to determine the entire triangular prism's area.
Step 2:
There are two triangles with base lengths of 10 inches and heights of 8.7 inches. To calculate a triangle's area we multiply with the product of the base length and it's height.
Area of 1 triangle = inch².
Area of both triangles = Area of 1 triangle × 2 = = 87 inch².
Step 3:
There are three rectangles with a common length of 10 inches and a width of 3 inches.
Any rectangle's area is given by multiplying the rectangle's length with its width.
Area of the 1 rectangle = inch².
Area of 3 rectangles = inch².
Step 4:
The area of the entire triangular prism = inch².
1. 27
2=77
Your angles have to equal 90 and 180 degrees
So you would have to subtract from the angles and the numbers
Answer:
c
Step-by-step explanation: