7. Find the area of the shaded portion.
(a) 21 cm
21 cm
(b) 14 cm
in 50 cm
(c)
28 cm
21 cm
28 cm
- The perimeter of a given figure is the sum of all its sides
The circumference is the length (perimeter) of the circle.
22
radius of the circle
andr
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Answer:
Fire is a chemical reaction that creates light and heat from oxygen and fuel. A lit candle needs to draw oxygen from the air in order to continue burning. If you limit the amount of air available, the candle's flame eventually goes out once it uses up all the oxygen.
Step-by-step explanation:
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