All ________ triangles are similar.
Isosceles
Equilateral
Scalene
None of these
If two triangles are similar such that ratio of their areas is 25 : 361. THen ratio of corresponding medians is
5 : 19
1 : 6
5 : 29
15 : 19
25 : 4
4 : 25
4 : 9
9 : 4
Which of the following is not true?
All circles are similar
All squares are similar
All equilateral triangles are similar
All quadrilaterals are similar
From a point P, the length of the tangent to a circle is 15 cm and distance of P from the centre of the circle is 17 cm. Then the radius of the circle is
6 cm
8 cm
4 cm
10 cm
A tangent PT at a point T of a circle of radius 8 cm meets a line through the centre O at a point P so that OP = 17 cm. Then, the length of PT is
12 cm
8.5 cm
15 cm
The areas of two similar triangles are 81 cm2 and 49 cm2 respectively. If the altitude of the first triangle is 6.3 cm then the corresponding altitude of the other is
4.9 cm
9.4 cm
49 cm
9.2 cm
Determine the length of a tangent to a circle with radius 5 cm, draw from a point at a distance to 13 cm, from the centre of the circle.
13 cm
14 cm
In Δ ABC and Δ DEF, ∠ B = ∠ E, ∠ F = ∠ C and AB = 2 DE, then two triangles are
Equal
Equivalent
Similar
Figures of same size and same shape are
Congruent
Both 1 and 2
