triangle pqr is an equilateral triangle with side 18 centimetre a circle is drawn on the segment QR as diameter find the length of Arc of the circle within the triangle
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Answer:
56.57 cm
Step-by-step explanation:
Finding the length of the arc is basically similar to finding the circumference of a semi circle since the figure formed within the triangle is a semicircle
The formula of circumference is pi multiply by the diameter plus the diameter but in this case we shall not add the diameter since we are only interested in the length of the arc
The diameter is 18 cm and the pi is 22/7
The working
22/7× 18 = 56.57 cm
That is the length Of the arc.
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