Question

Length of sides of a triangle are 9cm, 40cm and 41cm. The triangle is:

(a) An acute angled triangle (b) An obtuse angled triangle

(c) A right angled triangle (d) An isosceles right triangle ​

Answer 1

Answer:

Left side is equal to the right side.

Step-by-step explanation:

Hence the three sides 9, 40, 41 satisfy the Pythagoras theorem. Therefore, these three sides form the sides of a right angled triangle.

Answer 2

Step-by-step explanation:

41×41=1681. 40×40+9×9=1600+81=1681. so this follow Pythagoras theorem as the square of one side is equal to the square of other two sides. Hence,this is a right angled triangle