Question

6. Which of the following will form right angle triangle
a) 3cm, 7cm, 9cm
b) 12cm, 5cm, 13cm​

Answer 1

Answer:

b) 12cm, 5cm, 13cm

by pythagoras theorem

${12}^{2} + {5}^{2} = {13}^{2} \\ 144 + 25 = 169 \\ 169 = 169$

LHS=RHS

hence proved

Answer 2

Step-by-step explanation:

option b. lengths will form a right angled triangle