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12 questions from this quiz
Vertical height
12×b×h\frac{1}{2} \times b \times h21×b×h
b×hb \times hb×h
12(a+b)×h\frac{1}{2}(a + b) \times h21(a+b)×h
Split into basic shapes & add areas
πr2\pi r^2πr2
2πr2\pi r2πr
3.1423.1423.142
x360×πr2\frac{x}{360} \times \pi r^2360x×πr2
x360×2πr\frac{x}{360} \times 2\pi r360x×2πr
Sector area - Triangle area
Include straight edges & curved part
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