Changing the Subject: Squares & Roots (Year 10)
Free printable UK Year 10 (GCSE Foundation) maths worksheet: rearrange formulae where the subject is squared (such as A = pi r^2) using a square root.
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Grade 9 · Math worksheet
Name
Date
Math
Changing the Subject: Squares & Roots
Rearrange each formula to make x the subject, where x is squared. Undo the operations in reverse order, taking a square root last, and give the positive root since x represents a length.
- 1.Make x the subject of A = 2x^2 (x is a positive length).
- 2.Make x the subject of A = 4x^2 (x is a positive length).
- 3.Make x the subject of A = 8x^2 (x is a positive length).
- 4.Make x the subject of A = 7x^2 (x is a positive length).
- 5.Make x the subject of y = + 8 (x is a positive length).
- 6.Make x the subject of y = + 17 (x is a positive length).
- 7.Make x the subject of y = + 15 (x is a positive length).
- 8.Make x the subject of y = + 16 (x is a positive length).
- 9.Make x the subject of y = - 5 (x is a positive length).
- 10.Make x the subject of y = - 13 (x is a positive length).
- 11.Make x the subject of y = - 20 (x is a positive length).
- 12.Make x the subject of y = 3x^2 + 4 (x is a positive length).
- 13.Make x the subject of y = 4x^2 + 2 (x is a positive length).
- 14.Make x the subject of y = 3x^2 + 14 (x is a positive length).
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