A rectangle has an area of 20 cm2. Its lengths are enlarged by a factor of 3. What is the area of the new rectangle?

Length scale factor (l.s.f) = 3
Area scale factor (a.s.f.) = 32 = 9
New area = original area x (a.s.f.) = 20 x 9 = 180 cm2

PB
Answered by Paulina B. Maths tutor

3373 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

If the area of a rectangle with sides 3cm and (4+x)cm is equal to that of a triangle with base of 2xcm and a height of 4cm, find x


Triangle ABC has perimeter 20 cm. AB = 7 cm. BC = 4 cm. By calculation, deduce whether triangle ABC is a right-angled triangle. 4 marks.


A gym has 275 members. 40% are bronze members. 28% are silver members. The rest are gold members. Work out the number of gold members.


Simplify: 2x +6y +2y - x


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning