Which ratios are equivalent to 3/5? 3/4 5/3 5/7 6/10 12/20

Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle

Find the difference (8ab+a+2) - (3ab+6)

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.