Area of a circle "ds" over the whole circle formula_33 is just the arc length, which is its circumference, so this shows that the area "A" enclosed by the circle is equal to formula_34 times the circumference of the circle. Note that the area of a semicircle of radius r can be computed by the integral formula_35. By trigonometric substitution, we substitute formula_36, hence formula_37 The last step follows since the trigonometric identity formula_42 implies that formula_43 and formula_44 have equal integrals over the interval formula_45, using integration by substitution. But on the other hand, since formula_46, the sum of the two integrals is
What a Waste on both "Warts 'n' Audience" and "Straight from the Desk". Dury re-recorded the song with Curve in 1993 for the "Peace Together" album. The recording was also included on Curve's 2004 compilation album "The Way of Curve". Although the original single omits the exclamation mark, "What a Waste" is sometimes written with one, including on "Live! Warts 'n' Audience". Part of the bridge section of "What a Waste" was sampled by A Tribe Called Quest on their 1991 single "Can I Kick It?". What a Waste "What a Waste" is a song and single by Ian Dury and the Blockheads,