I believe the answer is 3/8, if i'm wrong then i really sorry
Answer:

thats it all of them are 69
Answer:
580
Step-by-step explanation:
I wanted to use the Pythagoras theory but I noted that they've given us the hypotenuse which is 8.6 they have already given us the height is 7 and the base is 5 when you use the Pythagoras theory you'll find that there hypotenuse is 8.6 that's why I wrote forget it there's no need of finding the base and the height for the other triangle just transfer 7 and 5 then calculate the volume I guess I got the answer is 580 hope it helps you good day.
Answer:
x = 220°
Step-by-step explanation:
∠AEB = ∠ABE = (180 - 80) /2 = 50 (isosceles triangle property)
∠BED = 90
x = 360 - 90 - 50 =220