Answer:
Step-by-step explanation:
Answer:
224 in^2
Step-by-step explanation:
Base = 8 * 8 = 64
Area of 1 triangle = 1/2 * b * h = 1/2 * 8 * 10 = 40
There are for such triangles. 4 * 40 = 160
Total area= 160 + 64 = 224 in^2
since perimeter is the total of the length plus length plus width plus width:
L+L+W+W= 78 cm (given in the problem) as the total perimeter; and remember the length (we are told in the problem) is equal to 2 times width. so:
3 +2w+3+2w=78
6 +4w=78
6+4w-6=78-6
4w=72
w=18
