Multiple choice

A right angled triangle has perimeter 32 cm and area 20 cm2 what is the length of its hypotenuse. एक समकोण त्रिभुज का परिमाप 32 सेमी. है और क्षेत्रफल 20 सेमी2 है | इसके कर्ण की लम्बाई क्या है ?

  1. 14.75 cm./सेमी.

  2. 15.21 cm./सेमी.

  3. 13.24 cm./सेमी.

  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For right triangle with sides a, b, c (hypotenuse): a + b + c = 32, ab = 40 (from area = 20), and a² + b² = c². Solving: (32-c)² = c² + 80, giving 1024 - 64c = 80, so c = 14.75 cm. Option A is correct. Options B and C don't satisfy the Pythagorean theorem with the given constraints.