Answer:
Um I think it is 120%, but i am not totalyy sure

Given,
Area = 225 yd²
Base = 30 yd
Height = [To be calculated]
To find:
The height of the given triangle.
We know that, area of a triangle is:

Therefore, the require height is 15 yd.
Proof:


I think it would require 100 workers since 1 worker digs up 1 yard.
Hope this helps.
Answer:
1260 is cost price and 140 is profit.
Step-by-step explanation: