The area of an isosceles right angled triangle is 121 cm2. Find its hypotenuse.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 22 cm
| Understanding | Application |
| The area of a triangle = (1 / 2) × base × height |
The area of the given triangle = (1 / 2) × a × a Where 'a' is the equal side of the isosceles triangle. ⇒ (1 / 2)a2 = 121 ⇒ a = 11√2cm The hypotenuse will be = a√2 ⇒ 11√2 × √2 ⇒ 22cm |
