Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

The lengths of the three sides of a triangle are 3 cm, 4 cm and 5 cm respectively. Find the area of this triangle.

Options:

6 cm2

12 cm2

8 cm2

10 cm2

Correct Answer:

6 cm2

Explanation:

The sides of the triangle is given = 3, 4, and 5.

So we can say that this is a right angle triangle because 3,4 and 5 is a triplet.

So, Area of right angled triangle = \(\frac{1}{2}\) × Base × Height

= \(\frac{1}{2}\) × 4× 3 = 6cm2