What is the area of the region bounded by the lines y = x, y = 0 and x = 4?

This question was previously asked in
Airforce Group X 6 November 2020 Memory Based Paper
View all Airforce Group X Papers >
  1. 4 square units
  2. 8 square units
  3. 12 square units
  4. 16 square units

Answer (Detailed Solution Below)

Option 2 : 8 square units
Free
General Knowledge for All Defence Exams (शूरवीर): Special Live Test
22.4 K Users
20 Questions 20 Marks 16 Mins

Detailed Solution

Download Solution PDF

Concept:

Area of triangle = \(\rm \frac{1}{2}\times base \times height\)

Calculations:

Given lines are y = x, y = 0 and x = 4

To find the area of region bounded by line y = x, y = 0 and x = 4, fist draw a graph of the lines.



F1 Images-2 Sep Aman.K 02-09-2020 Savita D2

First find the point of intersection.

when y = 0 , x = 0

when x = 4, y = 4

So, point of intersection is (0, 0), and (4, 4).

By these lines y = x, y = 0 and x = 4, we get bounded region as triangle.

Area of triangle = \(\rm \frac{1}{2}\times base \times height\)

⇒Area of triangle = \(\rm \frac{1}{2}\times 4 \times 4\)

⇒Area of triangle = 8 units

Hence,the area of the region bounded by the lines y = x, y = 0 and x = 4 is 8 units

Latest Airforce Group X Updates

Last updated on Jul 11, 2025

->Indian Airforce Agniveer (02/2026) Online Form Link has been activated at the official portal. Interested candidates can apply between 11th July to 31st July 2025.

->The Examination will be held 25th September 2025 onwards.

-> Earlier, Indian Airforce Agniveer Group X 2025 Last date had been extended.

-> Candidates applied online from 7th to 2nd February 2025.

-> The online examination was conducted from 22nd March 2025 onwards.

-> The selection of the candidates will depend on three stages which are Phase 1 (Online Written Test), Phase 2 ( DV, Physical Fitness Test, Adaptability Test), and Phase 3 (Medical Examination).

-> The candidates who will qualify all the stages of selection process will be selected for the Air Force Group X posts & will receive a salary ranging of Rs. 30,000.

-> This is one of the most sought jobs. Candidates can also check the Airforce Group X Eligibility here.

Get Free Access Now
Hot Links: teen patti pro teen patti gold download teen patti comfun card online