PLZ HEL ME Check all the ratios that are equal to 8:10

4:5
2:2
16:20
32:40
36:28

Answers; a) 135 degree’s b) 30 degree’s c) 180 or 0 degree’s d) 90 degree’s

Which is the correct first step in finding the area of the base of a cylinder with a volume of 26x cubic meters and a height of 6.5 meters? v=bh 6.5=b(26x) v=bh v=26pi+(6.5) v=bh v=26pi(6.5) v=bh 26pi=b(6.5)

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle