Question

In ∆ABC. if the sides are 5. 13 and 12, then ∆ABC is
A) a right angled triangle
B) an acute angled triangle
B) obtuse angled triangle
D) complementary​

Answer 1

Answer:

A) A right angled triangle

Step-by-step explanation:

(5,12,13)

Pythagorean triplets( The side with measure 13 is equal to the squares of other two sides that is 12+5 which is equal to 144+25=169=13)

Hence, ABC is a right angled triangle.