Use photomath... but i already did 11 and its -52
First, we have to find the length of each side of triangle. Equilateral triangle means 3 sides r in same length, so each side will be 21 ÷ 3 = 7
Now we need to calculate the height of the triangle. We can do this by Pythagoras theorem
Let the height be h
(7/2)^2 + x^2 = 7^2
The area should be 6.0621778265
Or u can say 6.06 corrected to 3 sig fig
50000 units on ground length
5:x 1:10000
5/x=1/10000
50000=x
Would appreciate a brainlist ty :)
