Answer: 4/5
Step-by-step explanation:
80% is 80/100
80/100 simplified is 4/5
A rational number that is not an integer can be expressed in decimal form with a non-zero digit after the decimal
Use pythagora's theorem to test if it is a right triangle
c^2 = a^2 + b^2
65^2 = 52^2 + 43^2
4225 = 2704 + 1849
4225 =/= 4553
therefore it is not a right triangle as it does not comply to pythagora's theorem
