Answer:
-0.875
Step-by-step explanation:
cos(E)=0.8
cos(E)=adjacent/hypotenuse
Using a common pythagorean triple, we can find that side GE is 30 (18^2+24^2=30^2)
Then we just get cos(E)=24/30, which is 0.8
I guess reflexive property........
Please find attached photograph for your answer
64cm² I think :) if u get it wrong dont blame it on me.
