# WA4 - Robert Edwin Goode Student ID 0451848 Mentor Nilajan...

This preview shows pages 1–4. Sign up to view the full content.

Robert Edwin Goode Student ID: 0451848 Mentor: Nilajan Paul Date: 10/08/11 Writing Assignment #4 Section 8.1[4,8,16,34,46] 4. Angle B = 180°-105°-45° = 30° a/sinA = b/sinB ↔ a/sin45°=10/sin30° a=10√2 8. Angle A = 180°-124.1°-18.7° = 37.2° a/sin37.2°=94.6/sin18.7° a=178.4m 94.6/sin18.7° = c/sin124.1° C=244.3m 16. Angle A = 180°-71.83°-42.57°= 65.6° 2.614/sin65.6° = b/sin42.57° b=1.942 1.942/sin42.57° = c/sin71.83° c=2.727 34. Sin48.2°/697cm = sin A/890cm A = 79.16°

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
180°= 48.2°+79.16°+C C = 52.64° 697cm/sin48.2°= c/sin52.64° c=743cm 46. C=29°50’ = 29.83° Sin29.83°/5.21 = sinA/8.61 A=55.3° 180°=B°+29.83°+55.3° B= 94.87° Sin55.3°/8.61=sin94.87°/b b=10.43 Section 8.2 (10,12,24,30,64,68) 10. A=60°, b=8, c=3 a 2 =8 2 +3 2 -2(8)(3)cos60° a 2 =64+9-48*1/2 a=7 sin60°/7 = sinB°/8 B=81.8° 180°-81.8°-60° C=38.2° 12. a=1, b=√3, c=1 a 2 =b 2 +c 2 -2bc cosA
1=3+1-2√3cosA A=30° Sin30°/1=sinB/√3 B=60° Sin60°/√3 = sinC/1 C=30° 24. a=28ft, b=47ft, c=58ft

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 7

WA4 - Robert Edwin Goode Student ID 0451848 Mentor Nilajan...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online