Question

Hey guys please help me

Answer 1

Explanation:

7) Given circumference = 24

Angle CED = 78.4 means ARc CD subtends an angle of

156.8 with the centre.

Hence arc length =
`(156.8)/(360) (24)=10.453`

8) By circle theorem we have

FC*FC = EC*DC

USing the above

FC*FC =3(1.3) = 3.9

Hence FC = square root of 3.9 = 1.975

9) Length of arc BC =
`(146.2)/(360) (2(1.9((3.14))=`=4.845