1. The book was lying on the table. Book is a common noun
Book is a proper noun
Book is a collective noun
2. Love begets love.
Love is a common noun
Love is a collective noun
Love is an abstract noun
3. We cannot live without water.
Water is a common noun
Water is a material noun
Water is an abstract noun
4. The jury has given its verdict.
Jury is a collective noun
Jury is a common noun
Jury is an abstract noun
5. The Hindus regard Krishna as an incarnation of Lord Vishnu.
Hindus is a common noun
Hindus is a proper noun
Hindus is an abstract noun
6. Alcohol is injurious to health.
Health is a common noun
Health is an abstract noun
Health is a proper noun
7. Smoking is a bad habit.
Habit is a common noun
Habit is a proper noun
Habit is an abstract noun
8. Wild animals live in forests.
Animals is a common noun
Animals is a proper noun
Animals is an abstract noun
9. The childhood of Peter was full of misery.
Childhood is a common noun
Childhood is an abstract noun
Childhood is a proper noun
10. All the girls were singing.
Girls is a common noun
Girls is a proper noun
Girls is an abstract noun
11. Gold is a precious metal.
Gold is a proper noun
Gold is an abstract noun
Gold is a material noun
12. Rice is the staple food of South Indians.
Rice is a common noun
Rice is a material noun
Rice is an abstract noun
13. The earth moves round the sun.
Earth is a common noun
Earth is an abstract noun
Earth is a proper noun
ну, по свойству биссектрисы отрезки гипотенузы тоже относятся как 3/4. Пусть один из них 3*x, тогда 4*x, разность x = 5. Поэтому гипотенуза равна 7*5 = 35.
Катеты легко находятся из теоремы Пифагора при заданной пропорции, они равны 21 и 28. А площадь равна 294.
Задачу можно решить без каких-то "сложных" вычислений, если сразу увидеть, что отношение катетов 3/4 задает нам египетский треугольник, подобный (3,4,5). Сопоставляя эту тройку с длиной гипотенузы 35, видим, что длины сторон (21, 28, 35).