English

Construct a square whose area is 23.04 cm^2. - Mathematics

Advertisements
Advertisements

Question

Construct a square whose area is 23.04 cm2.

Geometric Constructions
Advertisements

Solution

Given: Area of square = 23.04 cm2.

Step-wise calculation:

1. Let side = a. Then a2 = 23.04.

2. `a = sqrt(23.04)`

= `sqrt(2304/100)`

= `48/10`

= 4.8 cm

3. Construction (standard ruler-and-compass method when a side is given):

Draw segment AB = 4.8 cm.

At A construct a perpendicular to AB; on it mark point D so that AD = 4.8 cm.

At B construct a perpendicular to AB on the same side as AD; on it mark point C so that BC = 4.8 cm.

Join C to D. ABCD is the required square.

A square with area 23.04 cm2 has side length 4.8 cm; construct it by drawing a side of 4.8 cm and erecting perpendiculars as described to complete the square.

shaalaa.com
  Is there an error in this question or solution?
Chapter 12: Constructions of Polygons - Exercise 12A [Page 241]

APPEARS IN

Nootan Mathematics [English] Class 9 ICSE
Chapter 12 Constructions of Polygons
Exercise 12A | Q 25. | Page 241
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×