1800

5400

× 100%≈33.3%,

Literary books:

2400

5400

× 100%≈44.4%,

Reference book:

300

5400

× 100%≈5.6%,

Comics:

900

5400

× 100%≈ 16.7%;

(2) The degree of central angle occupied by scientific books:

1800

5400

×360 = 120 ,

The extent to which literary books occupy the central angle;

2400

5400

×360 = 160 ,

The degree of reference books occupying the central angle:

300

5400

×360 =20 ,

The central corner of the cartoon:

900

5400

×360 =60 ,

Make the following fan-shaped statistical chart:

... spread out

(1) Science and technology books:

1800

5400

× 100%≈33.3%,

Literary books:

2400

5400

× 100%≈44.4%,

Reference book:

300

5400

× 100%≈5.6%,

Comics:

900

5400

× 100%≈ 16.7%;

(2) The degree of central angle occupied by scientific books:

1800

5400

×360 = 120 ,

The extent to which literary books occupy the central angle;

2400

5400

×360 = 160 ,

The degree of reference books occupying the central angle:

300

5400

×360 =20 ,

The central corner of the cartoon:

900

5400

×360 =60 ,

Make the following fan-shaped statistical chart:

bale