Scalene Triangle

Q.

The line segment joining a vertex of a triangle to the midpoint of the opposite side is called a$\_\_\_\_\_\_$ of the triangle. [a median/an altitude]

Q.

Fill in the blanks with suitable answers.

(i) A triangle has ………. Vertices.

(ii) Triangles are grouped into ………. types according to their sides.

(iii) Triangles are grouped into ………. types according to their angles.

(iv) In a scalene triangle three sides are not ……….

(v) If one angle of a triangle is 90°, the triangle is said to be ………..

Q.

Triangle 𝑋𝑌𝑍 is right-angled at vertex 𝑍. Calculate the length of 𝑌𝑍, if 𝑋𝑌 = 13 𝑐𝑚 and 𝑋𝑍 = 12 𝑐𝑚.

Q. On the basis of sides, triangles are classified into how many types?

1. 3
2. 5
3. 2
4. 6

Q.
Which type of triangle is $\Delta ABC$?

1. Isosceles Triangle
2. Scalene Triangle
3. Right-angled Traingle
4. Equilateral Triangle

Q. What is the type of triangle shown below?

1. Right angled scalene triangle
2. Acute angled isosceles triangle
3. Obtuse angled scalene triangle
4. Acute angled scalene triangle

Q. The triangle given below is an acute-angled triangle.

1. True
2. False

Q. What is the type of triangle shown below?

1. Obtuse angled equilateral triangle
2. Acute angled equilateral triangle
3. Obtuse angled scalene triangle
4. Right angled isoscels triangle

Q.

A triangle having sides measuring 5 cm, 11 cm and 13 cm is _______ triangle.

1. equilateral

2. isosceles

3. right angled

4. scalene