The perimeter of the rectangle whose length is 60 cm and a diagonal is 61 cm is
(a) 120 cm (b) 122 cm (c) 71 cm (d) 142 cm
If two angles of a triangle are 60° each, then the triangle is
(a) Isosceles but not equilateral (b) Scalene
(c) Equilateral (d) Right-angled
If in an isosceles triangle, each of the base angles is 40°, then the
triangle is
(a) Right-angled triangle (b) Acute angled triangle
(c) Obtuse angled triangle (d) Isosceles right-angled triangle
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
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
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
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