Answer:
Step-by-step explanation:
<h3>Hope it is helpful....</h3>
Answer:
No I don't agree with Clare.
You will get more than 11 yards
Step-by-step explanation:
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
15.) 12a^11y^12/4a^5y^8
=12a^6y^4/4
=3a^6, y^4
16.)(2p^10z)^3
=8p^30 z^3
Your welcome love! :)
