Triangles

If we classify the triangles according to their angles and sides ,how many types(in total) of triangles are there?

• 4

• 5

• 3

• 6

If one angle of a triangle is equal to the sum of other two angles, then the triangle is ______

• an isosceles triangle

• an obtuse triangle

• an equilateral triangle

• a right triangle

Tags

CCSS.8.G.A.5

Name the congruency criteria if given that two triangles have two corresponding sides & an included angle equal.

• SSS

• RHS

• SAS

• ASA

Tags

CCSS.HSG.SRT.B.5

Say 'TRUE' or 'FALSE'
The angles of a triangle may be 90°, 20°, 90°

• TRUE
• FALSE

Tags

CCSS.8.G.A.5

Which of the following is not a criteria for congruence of triangles?

• SAS

• ASA

• SSA

• SSS

Tags

CCSS.HSG.SRT.B.5

In a ∆ ABC, BC = AB and ∠C = 80° then ∠A is equal to ______

• 80°
• 40°
• 100°
• 50°

Say 'TRUE' or 'FALSE'
The medians of an equilateral triangles are equal

• TRUE
• FALSE

Two sides of a triangle are of lengths 7 cm and 3.5 cm.  The length of the third side cannot be 

• 3.6
• 3.7
• 3.4
• 3.8

Tags

CCSS.7.G.A.2

What type of triangle is this? 

• equilateral
• obtuse
• scalene
• isosceles

Tags

CCSS.4.G.A.2

What type of triangle is this? 

• obtuse
• equilateral
• acute
• right

Tags

CCSS.4.G.A.2