Question

(2) If two sides of the right angled triangle are 3 and 4, then what is the
length of the third side ?
(A) 5 (B)
$\sqrt{7}$
(C) 5 or
$\sqrt{7}$
(D) none of these
​

Answer 1

Length of third side will be
B. Root7

Answer 2

Solution᭄

Given , a = 3 and b = 4

According to Pythagoras theorem ,

a^2 + b^2 = c^2

3^2 + 4^2 = c^2

9 + 16 = c^2

25 = c^2

c^2 = 25

c = √25

c = 5

Therefore , option (A) 5