Answer:
11%
Step-by-step explanation:
The percentage of the discount is 1012/9200 x 100 = 11%
We can find h by calculating the area S of the parallelogram in two ways. We can write:
. On the other hand,
. Then:
6.7*6.7 to find the surface area of the base which is 44.89
4*1/2*10.1*6.7 to fix the surface area of all four triangular faces which is 135.34
Plus them together 44.89+135.34 which is 180.23