1. 1. ABC AC = BC, AB = 18,cos A = 0,6. AC.
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2. 2. ABC AC = BC = 10, sin B = 0,8. AB.
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3. ABC AC = BC, AB = 18,sin A = 0,8. AC.
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4. ABC AC = BC, AB = 4, tg A = 0,75. CH.
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5. ABC AC = BC, AB = 30, sin A = 0,8. AH.
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6. ABC AC = BC, AB = 30, cos A = 0,6. AH.
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7. ABC AC = BC, AB = 30, sin A = 0,8, AH - . BH.
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8. ABC AC = BC, AB = 30, cos A = 0,6, AH - . BH.
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9. ABC AB = BC, AC = 10, sin C = 0,6. CH.
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1
1. ABC C 90, tg A = 
. sin B.
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2. ABC C 90, CH , AC = 10, AH = 8. sin B.
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3. ABC AC = BC = 5, AB = 6. cos B.
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4. ABC AC = BC, AB = 5, BH 4. sin B.
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5. ABC AB = BC, AC = 5, CH , AH = 4. ACB.
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6. ABC C 90, AB = 5, BC = 3. A.
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7. ABC AB = BC, AB = 5, CH 4. ABC.
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8. AOB.
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9. ABC AC = BC, AB = 15, sin B = 0,8. BH.
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10. ABC AB = BC, AC = 10, cos C = 0,8, CH - . AH.
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2
1. ABC C 90, sin B = 0,8. tg A.
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2. ABC C 90, AC = 5, CH 3. cos B.
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3. ABC AC = BC = 5, AB = 8. tg B.
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4. ABC AC = BC, AB = 5, BH 4. cos B.
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5. ABC AB = BC, AC = 8, CH 4. ACB.
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6. ABC C 90, AB = 5, BC = 3. A.
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7. ABC AB = BC, CH , AB = 5, BH = 3. ABC.
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8. AOB. , 
.
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9. ABC AC = BC, AB = 15, cos B = 0,6. BH.
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10. ABC AB = BC, AC = 10, cos = 0,8. CH.
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3
1. ABC C 90, cos B = 0,6. tg A.
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2. ABC C 90, CH , BC = 5, BH = 3. tg A.
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3. ABC AC = BC = 5, AB = 8. sin B.
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3. 3. ABC AC = BC, AB = 5, BH , AH = 3. cos B.
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4. 4. ABC AB = BC, AB = 8, CH 4. ABC.
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5. 5. ABC C 90, tg A = 0,75. A.
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7. ABC AB = BC, AB = 5, CH 4. A.
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8. AOB. , 
.
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9. ABC AC = BC, AB = 15, sin A = 0,8, BH - . AH.
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10. ABC AB = BC, AC = 5, sin C = 0,6, CH - . AH.
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1. 0,8. 2. 0,75. 3. 0,6. 4. 0,75. 5. 0,6. 6. 0,6. 7. 0,8. 8. 0,6. 9. 0,8.
1. 0,6. 2. 0,75. 3. 0,6. 4. 0,8. 5. 0,6. 6. 0,6. 7. 0,8. 8. 0,5. 9. 0,6.
