Given that a circle has a radius of 7cm and an arc of length 9cm is subtended by a central angle 𝜃, find the measure of 𝜃 in degrees. Give your answer to 3 significant figures without the symbol ∘ or the word ‘degrees’.

A circular arc has a length of 5𝜋m. If the radius of the arc is 4m, find the central angle of the arc (that is, the angle formed by the two radii that intercept the arc).Give your answer in radians, correctly rounded to three significant figures. Do not give units with your answer.

An angle subtended by an arc at the centre is double the angle subtended by it at any point on the remaining part of the circle.In the figure,  AB is the diameter of the circle, find the value of  ∠ACD

Circle M has the central angle ∠AMB with a measure of 63°. Which of the following statements does not represent the circle M?is a major arc=63°is a minor arcThe center of the circle is point M.

Find the measure of a central angle that intercepts an arc of 27 inches in a circle whose radius is 10 inches.0.27 rad2.7 rad27 rad270 radNEXT QUESTION ASK FOR HELPTURN IT IN© 2008, 2009, 2011 Glynlyon, Inc.TERMS OF USE

The diagram shows a shape made from triangle 𝐴𝐵𝐶 and a semicircle with diameter 𝐵𝐶.Triangle 𝐴𝐵𝐶 is right-angled at 𝐵.𝐴𝐵=7.6 cm and 𝐴𝐶=9.5 cm.Calculate the area of the shape.Give your answer correct to 3 significant figures.