【进阶级练习题41】. q6 e4 f" m% f) u$ @0 ?$ b5 S 原创:Joseflin先生(台湾) 整理:SHAONX(上海). o# K" l, p. Q% B( R
0 {6 r% U1 t6 D3 r4 I. D9 H1 K求: " S! J5 M4 e7 V5 `1. AC 之长度为何? ( N2 V6 @ s+ N% ` a. 70.7017 b. 70.7107 c. 70.7701' H: G2 \/ N% j# f# ]# t
2. AD 之水平距离为何? . [9 p9 p" Q4 k" B7 f a. 85.3355 b. 85.3535 c. 85.3553 : o+ U+ C2 a5 W: o8 d) J" d. o3. ∠ABD 之角度值为何? / w) k9 Z' H4 O% I3 a a. 67.500° b. 67.550° c. 68.000°+ z, V- I1 b5 K2 f4 [# ^2 I
4. P 区之面积为何? ( m- {# G; e+ o: [* M; B; V2 V a. 517.7076 b. 517.7670 c. 517.7706