A rectangle has an area of 20 cm^2.  Its length and width are enlarged by scale factor 3.  Find the area of the enlarged rectangle.

Area Scale Factor = (Scale Factor)2

If the scale factor is 3 then:

ASF = 32

ASF = 9

Area of enlarged rectangle = 20x9

Area of enlarged rectangle = 180cm2

Answered by Melanie U. Maths tutor

3564 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do I factorise quadratic equations?


Solve the following set of simultaneous equations: 3x + 2y = 15 & 9x + 4y = 1


Factorise 9a^2+6ab.


Prove that the square of an odd number is always 1 more than a multiple of 4. [Edexcel Higher Tier 2018, Paper 1: Question 12]


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences