Question

if in a right angle triangle named abc. right angle at b . ac is 15cm,ab is 13cm .then find bc which is x​

Answer 1

Answer:

The answer is  7.4 cm

Step-by-step explanation:

In the right angle trianle, the longest side is the hypotenuse.

In a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Thus in aright angle triangle abc, we are given

ac= 15 cm

ab = 13 cm

To find bc = x

Solution:

(ac)^2 = (ab)^2 + (bc)^2

(15)^2 = (13)^2 + (x)^2

225 = 169 +  (x)^2

(x)^2 = 225 - 169

(x)^2 = 56

Taking aquare root on both sides:

x = 7.4 cm