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Land, Soil, Water, Natural vegetation and Wildlife resources

Write any two reasons for land degradation today.

Construction

Construct a triangle ABC in which BC = 7.5 cm, ∠B = 45° and AB – AC = 4 cm

Construction

Write True or False in each of the questions. Give reasons for your answer:

A triangle ABC can be constructed in which ∠ B = 60°, ∠C = 45° and AB + BC + AC =12 cm.

Construction

Write True or False in each of the questions. Give reasons for your answer:

A triangle ABC can be constructed in which ∠ B = 105°, ∠C = 90° and AB + BC + AC = 10 cm.

Construction

Write True or False in each of the questions. Give reasons for your answer:

A triangle ABC can be constructed in which BC = 6 cm, ∠C = 30° and AC –
AB = 4 cm.

Construction

Write True or False in each of the questions. Give reasons for your answer:

A triangle ABC can be constructed in which AB = 5 cm, ∠A = 45° and BC +AC = 5 cm.

Construction

Write True or False in each of the questions. Give reasons for your answer:

An angle of 42.5° can be constructed.

Construction

Write True or False in each of the questions. Give reasons for your answer:

An angle of 52.5° can be constructed.

Construction

Write True or False in each of the questions. Give reasons for your answer:

An angle of 67.5° can be constructed.

Construction

The construction of a triangle ABC, given that BC = 3 cm, ∠C = 60° is possible when difference of AB and AC is equal to :

(A) 3.2 cm (B) 3.1 cm (C) 3 cm (D) 2.8 cm