Which side lengths form a right triangle? A, B or C?

B

Step-by-step explanation:

B.

Side lengths that for a right triangle will always follow the following rule:

a^2+b^2=c^2

Where a and b are the legs of the triangle, and c is the hypotenuse.

So to see this we can put it into that equation.

1.5^2+2^2=2.5^2

2.25+2=6.25

6.25=6.25

Therefore, these side lengths do form a right triangle.

f

step-by-step explanation:

f

for any of you who need the translation here it is

step-by-step explanation:

find the angular size of the equatorial radius of the earth, if the horizontal parallax of the sun