Multiple choice

From a metal sheet in the shape of trapezium with parallel sides $64\;cm\;and\;100\;cm$ and height $56\;cm,\;$ circle of radius $7\;cm$ are cut out. Find the area of the metal sheet that it left.

  1. $230\;cm^2$
  2. $260\;cm^2$
  3. $4438\;cm^2$
  4. $250\;cm^2$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The trapezium area is (1/2)(64 + 100) × 56 = 4592 cm^2. One circle of radius 7 cm has area 49π = 154 cm^2 using π = 22/7, leaving 4592 - 154 = 4438 cm^2.

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