2 ?8 |0 | X V; T7 X3 q求: / I9 Z0 v4 t. ~8 @- n M- R1. AC 之长度为何? $ A& ]: e) z! C6 F/ c% T a. 70.7017 b. 70.7107 c. 70.77011 y; N% C* I9 E7 v2 E" _; d1 \) v! o" H+ W
2. AD 之水平距离为何? ( e0 f7 V5 I, O% k
a. 85.3355 b. 85.3535 c. 85.3553 9 F* S) u0 ?( n ^. |& `+ p
3. ∠ABD 之角度值为何? ^) }7 C% q2 V U) H; G
a. 67.500° b. 67.550° c. 68.000°9 V6 Q) P: Y& ^$ r; V
4. P 区之面积为何?/ |! B; ]- \$ ~6 B( z
a. 517.7076 b. 517.7670 c. 517.7706