In a triangle ABC, AB + BC = 12 cm, BC + CA = 14 cm and CA + AB = 18 c – McqOptions

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1.	In a triangle ABC, AB + BC = 12 cm, BC + CA = 14 cm and CA + AB = 18 cm. Find the radius of the circle (in cm) which has the same perimeter as the triangle
A.	$\frac{5}{2}$$
B.	$\frac{7}{2}$$
C.	$\frac{9}{2}$$
D.	$\frac{{11}}{2}$$
Answer» C. $\frac{9}{2}$$

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