SSC CHSL 2024 PYQ — Question 57

SSC CHSL - 03 July 2024 - Shift 2 • Quantitative Aptitude • Q57

A circle of diameter 26 cm has two equal parallel chords of length 10 cm each, then the distance between the two chords is:

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. 24 cm.

According to the given question,

Let the radius of the circle be r and the centre of the circle be O.

Given that, AB = CD = 10 cm

And diameter = 26 cm

Then, radius, r = 13 cm

In triangle DOM, using Pythagoras theorem,

MO2 + DM2 = OD2

⇒ MO2 + 52 = 132

⇒ MO2 = 169 - 25

⇒ MO = 12 cm

Again in triangle BON, using Pythagoras theorem,

NO2 + BN2 = OB2 

⇒ NO2 + 52 = 132

⇒ NO = 12 cm

So, distance between the two chords = MO + NO

⇒ 12 + 12 = 24 cm

Hence the distance between the two chords is 24 cm.