Answer:
8cm
Step-by-step explanation:
Area of a triangle equals bh/2
If you plug in the data, you get
10=
*
10=
40=5h
h=8
THE 5 IDENTICAL SHELVES WOULD have to be 76 because if you take 400 - 20 (because that left over) you get 380/5 you get 76 and to check your work you do 5x76=380+20 you get 400 so 76 is you answer
Answer:
-126
Step-by-step explanation:
I used a calculator:3