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Question 2
Rearrange the following formulae to make the letter shown in the square brackets the subject.
| (a) | \( A = \frac {1}{2}bh \) | \( [b]\) | (b) | \( P = 2(L + B)\) | \( [L]\) | (c) | \( V = \frac{1}{3}\pi r^2h\) | \( [h]\) |
| (d) | \( s = \frac{d}{t}\) | \( [t]\) | (e) | \( s = ut + \frac{1}{2}at^2\) | \( [u]\) | (f) | \( A = 2\pi r(r + h)\) | \( [h]\) |
| (g) | \( k = \frac{3d}{2a + c}\) | \( [a]\) | (h) | \( A = d(\frac{a+b}{2})\) | \( [d]\) | (i) | \( A = d(\frac{a+b}{2})\) | \( [a]\) |
| (j) | \( y = \frac{a - b}{x}\) | \( [x]\) | (k) | \( S = \frac{1}{2}n(a + d)\) | \( [a]\) | (l) | \( a^2 = b^2 + c^2 - 2bccosA\) | \( [cosA]\) |