In triangle ABC, angle A is 90. AC = 6 sin B = 0.3 find BC.
| May 27, 2021 | education
1. Let’s write down the formulas:
sinB = cosC;
cosC = AC / BC;
sinB = 0.3 (according to conv.);
cosC = 0.3;
2. Let us express the BC from this relation:
AC / BC = 0.3;
By proportion:
0.3BC = AC;
Divide both parts by 0.3:
BC = AC / 0.3;
BC = 6 / 0.3;
BC = 20 cm.
Answer: 20 centimeters is the length of the sun side.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
