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Triangles

Two trees 7 m and 4 m high stand upright on a ground. If their
bases (roots) are 4 m apart, then the distance between their tops is
(a) 3 m (b) 5 m (c) 4 m (d) 11 m

Tertiary and quaternary activity

Describe quaternary services.

Triangles

The trianlge ABC formed by AB = 5 cm, BC = 8 cm, AC = 4 cm is
(a) an isosceles triangle only (b) a scalene triangle only
(c) an isosceles right triangle (d) scalene as well as a right triangle

Triangles

The top of a broken tree touches the ground at a distance of 12 m
from its base. If the tree is broken at a height of 5 m from the ground
then the actual height of the tree is
(a) 25 m (b) 13 m (c) 18 m (d) 17 m

Triangles

In ∆ ABC,
(a) AB + BC > AC (b) AB + BC < AC (c) AB + AC < BC (d) AC + BC < AB

Tertiary and quaternary activity

Explain retail trading service.

Triangles

In ∆PQR,
(a) PQ – QR > PR
(b) PQ + QR < PR (c) PQ – QR< PR (d) PQ + PR< QR

Triangles

Lengths of sides of a triangle are 3 cm, 4 cm and 5 cm. The triangle is
(a) Obtuse angled triangle (b) Acute-angled triangle
(c) Right-angled triangle (d) An Isosceles right triangle

Triangles

In a triangle, one angle is of 90°. Then
(i) The other two angles are of 45° each
(ii) In remaining two angles, one angle is 90° and other is 45°
(iii) Remaining two angles are complementary
In the given option(s) which is true?
(a) (i) only (b) (ii) only (c) (iii) only (d) (i) and (ii)

Triangles

In an isosceles triangle, one angle is 70°. The other two angles are of
(i) 55° and 55° (ii) 70° and 40° (iii) any measure

In the given option(s) which of the above statement(s) are true?
(a) (i) only (b) (ii) only (c) (iii) only (d) (i) and (ii)