Question

A PQR is an equilateral triangle
with side 18 cm. A circle is draw
on the segment QR 'as diameter. Find
the length of the arc of this circle within
the triangle​

Answer 1

Step-by-step explanation:

length of arc=theta/360×2¶r

l=1/60×2×3.14×9

solve this u will get your answe

Answer 2

Answer:

56.57 cm is the length Of the arc.

Step-by-step explanation:

Finding the length of the arc is similar to finding the circumference of a semi-circle since the figure formed within the triangle is a semicircle

The formula of the 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.