23°53′*3=107°45′/5=180°-(55°35′+64°28′)=°=度,′=分 1°=60′
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23°53′*3=107°45′/5=180°-(55°35′+64°28′)=°=度,′=分 1°=60′
23°53′*3=
107°45′/5=
180°-(55°35′+64°28′)=
°=度,′=分 1°=60′
23°53′*3=107°45′/5=180°-(55°35′+64°28′)=°=度,′=分 1°=60′
23°53′*3=71°39′
107°45′/5=21°39′
180°-(55°35′+64°28′)=59°57′
71度39分
21度33分
59度57分
(23度53分)*3 =(23*3)度(53*3)分= 69度159分=(69+2)度(159-120)分
= 71度39分
(107度45分)/5 =[(107-2)度(120+45)分]/5 =(105/5)度(165/5)分
= 21度33分
180度 -[(55度35分)+(64度28分)]= (178度120分)-[119度63分]
= 59度57分
23'53' x 3 = (23+ 53/60)x3 = 69+53/20 = 71.65 = 71'(65x60/100)'
= 71'39'
107'45' / 5 =(107+45/60)/5 = 21.4 + 9/60 = 21.55 = 21'55x60/100'
=21'33'
180' - (55'35' + 64'28') = 180'-119'63' = 180' - 120'3 = 60'-0'3'
=59'60' - 0'3'
=59'57'
1.=(23*3)°*(53*3)′=69°*159′=71°39′(分可以取出几个60,度就加几,秒也这样加)
2=107+45/60)/5 = 21.4 + 9/60 = 21.55 = 21'55x60/100'
=21'33'
3.=180°-119°63′=178°120′-119°63′=59°-57′
23°53′*3=71°39′
107°45′/5=21°39′
180°-(55°35′+64°28′)=59°57′