Question

cellusFind the length of arc AB. Use 3.14 for n.Round to the nearest tenth.5 79 cm66 49D[? ]cmEnter

Answer 1

To calculate the segment AB you have to use the following formula

$AB=\text{ }\frac{\theta}{180º}\pi R$

θ represents the central angle θ =90º

R represents the radius R= 7.9cm

$AB=\frac{90}{180}\cdot314\cdot7.9=\text{12.403cm}$

The length of segment AB= 12.403cm