Question

The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the length of the hypotenuse?

  A. 13.23 centimeters   B. 25 centimeters   C. 5.92 centimeters   D. 35 centimeters

Answer 1

The answer is B
15^2 + 20^2= 625
And 625 under square rout = 25

Answer 2

`a;b-legs\\c-hyperotenuse\\\\Pythagoras\ theorem:\ \ a^2+b^2=c^2\\\\substitute:\\\\c^2=15^2+20^2\\\\c^2=225+400\\\\c^2=625\\\\c=√(625)\\\\c=25\ (cm)\\\\\\Answer:B`