What is the length of the unknown leg in the right triangle

A. 8 cm

B. 16 cm

C. 20 cm

D. 40 cm

The correct answer would be 20cm. to find a you must use the equation A^2 + B^2 = C^2. if c = 29 cm before you square it, you must square them both and subtract B from c which would give you a, hence then you must find the square root which would be 20

C.) 20 cm

Step-by-step explanation:

Trust me its correct