1

The length of the side opposite to the angle of measure 30 in the right-angled triangle = ..the hypotenuse

2

If ABC is a right -angled triangle at B , AB = 6 cm, BC = 8cm, then the length of the median drown from B equals ..cm

3

The point of intersection of medians of the triangle divides each median in the ratio...from the base

4

If M is the point of intersection of the medians of △ ABC , AD is a median of length 9 cm, then AM =...cm

5

A rectangle ABCD , its diagonals intersect at M , the length of its diagonal is 6 cm, then the length of the median AM is...

6

The measure of the exterior angle of the equilateral triangle equals

7

The two base angles of the isosceles triangle are

8

XYZ is an isosceles triangle in which m (∠ y) = 100° , them m (∠ Z) =

9

If △ XYZ is right-angled at y , m(∠ X) = 60°, XZ = 10 cm, then XY =

10

In △ ABC , if AB = AC, m(∠ A) = 2 m(∠ B) then m(∠ C) = ..

11

If the measures of two angles in a triangle are 42°, 69° then the triangle is ..

12

The length of the median drown from the vertex of the right angle in the right-angled triangle equals...the hypotenuse

13

A right-angled triangle , the measure of one of its angle is 45° , then it is...

14

If ABC is a triangle , AB = BC, then ∠ C is

15

The median of the isosceles triangle from the vertex angle bisects it and ...to the base

16

An isosceles triangle , the measure of one of its angle is 60° then the number of its axes of symmetry is..

17

The length of the hypotenuse in the right-angled triangle equals ...the length of the side opposite to the angle of the measure 30°

18

The triangle which has no axes of symmetry is

19

If C ∈ the axis of symmetry of AB then AC - AB =

20

If the measure of the vertex angle of an isosceles triangle is 80° then the measure of one of its base angle is

21

If △ ABC is right-angled at B , AB = half AC then m( ∠ A) =

22

A triangle has 3 axes of symmetry , then the measure of the exterior angle at one of its vertices is equals

23

If the measures of two angles in a triangle are 48°, 84°, then its type is

25

The measure of the exterior angle of the equilateral triangle equals

26

In △XYZ , XY = 8 cm , Z = 5 cm , then its perimeter ∈ ...

39

The number of the medians of the triangle is