TANGENT LINE AND FUNCTION

The radii of two circle are 5 cm and 3 cm, respectively. The distance between their centers is 10 cm. The length of the internal tangent line to both circles is ....

• 6 cm

• 8 cm

• 15 cm

• 18 cm

The distance between the centers of two circles 17 cm, while the length of the internal tangent line is 15 cm. The radius of one of the circle is 3 cm, the radius of the other circle is ....

• 3 cm

• 5 cm

• 6 cm

• 9 cm

The radii of two circle are 10 cm and 2 cm, respectively while the distance between their centers is 17 cm. The length of the external tangent line to both circles is ....

• 9 cm

• 12 cm

• 15 cm

• 20 cm

The radii of two circles are 14 cm and 5 cm. The length of the external tangent line is 12 cm. The distance between their centers is ....

• 13 cm

• 14 cm

• 15 cm

• 16 cm

The radii of the two circles centered at P and Q are 6 cm and 3 cm, respectively. The distance from P to Q is 15 cm. The length of the internal tangent line to both circle is ....

• 12 cm

• 15 cm

• 21 cm

• 25 cm

The radii of two circles are 22 cm and 4 cm, respectively. The length of the external tangent line is 24 cm. The distance between the centers of the two circles is ...cm

• 10

• 20

• 30

• 40

The distance between the centers of two circles is 25 cm, and the radius of the first circle is 15 cm. The length of the external tangent line is 24 cm, the radius of the second circles is ... cm

• 11

• 10

• 9

• 8

The figure shows a cross section of 6 pipes each of which has a diameter of 24 cm. The length of the string required to tie 6 pipes together is ....

• 291.36 cm

• 269.91 cm

• 219.63 cm

• 219.36 cm

The figure shows a cross section of 6 pipes each of which has a radius of 35 cm. The length of the string required to tie 6 pipes together is ....

• 640 cm

• 604 cm

• 460 cm

• 406 cm

The area of PROQ is ....

• 12 cm²

• 120 cm²

• 1200 cm²

• 12.000 cm²