Answer:
33.7°
Step-by-step explanation:
The smallest angle -> opposite of the smallest side
Smallest side = 10yards
Calling this angle a
we have 10^2 = 15^2 +18^2 -2*15*18*cosa
-> cos a=0.83
cos^-1(a)=0.83 -> a =33.7 degree
That’s the commutative property.
Answer:
24
Step-by-step explanation:

Step-by-step explanation:


Answer:
There are 5⁸ blades.
Step-by-step explanation:
Given that,
The area of land 
Each acre has 5⁴ blades of grass
We need to find how many blades of grass have by the entire land. It can be calculated as follows :

Hence, there are 5⁸ blades.