Question

A triangle has side lengths of 15, 20, and 25. What type of triangle is it?

Answer 1

25^2 = 20^2 + 15^2
625 = 400 + 225
625 = 625

It's a right triangle.

Answer 2

Its a RIGHT ANGLED TRIANGLE.

GIVEN:
hypo=25
opposite and adjacent=15 and 20.

FORMULA:
hypotenuse^2 =opposite side^2 + adjacent side^2
25^2=15^2+20^2
625=225+400
400+225=625

so its a right angled triangle....................

understand??