Question

a radius of a circle whose length is 30cm is drawn at a distance of 8cm from the center find the radius of a circle. ​

Answer 1

Answer:

38 cm

30 + 8 = 38 cm is the radius

Answer 2

Answer:

mark me brainlinest plzzzz

Step-by-step explanation:

Chord of length 30 cm

Given that distance from centre to the chord

• AB is OC = 8 cm

• OC⊥AB Þ AC = CB [Since perpendicular drawn from centre of the circle bisects the chord]

∴ AC = CB = 15 cm

In right ΔOCA,

OA2 = AC2 + OC2

= 152 + 82

= 225 + 64 =

= 289 ⇒

AC = 17 cm

Thus the radius of the circle is 17 cm.