Triangles
Math ⇒ Geometry
Triangles starts at 6 and continues till grade 12.
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See sample questions for grade 6
A triangle has angles measuring 90°, 30°, and 60°. What type of triangle is it based on its angles?
A triangle has sides of 6 cm, 8 cm, and 10 cm. What is its perimeter?
A triangle has sides of lengths 5 cm, 5 cm, and 8 cm. What type of triangle is it based on its sides?
A triangle has two angles measuring 40° and 70°. What is the measure of the third angle?
A triangle has angles measuring 90°, 30°, and 60°. What type of triangle is it based on its angles?
A triangle has sides of 3 cm, 4 cm, and 5 cm. Is it a right triangle?
A triangle has sides of 6 cm, 8 cm, and 10 cm. What is its perimeter?
A triangle has sides of lengths 5 cm, 5 cm, and 8 cm. What type of triangle is it based on its sides?
Which of the following is a property of a scalene triangle?
(1) All sides are equal
(2) All angles are equal
(3) All sides are of different lengths
(4) It has a right angle
Which of the following is always true for an equilateral triangle?
(1) All angles are 60°
(2) All sides are equal
(3) It is also isosceles
(4) All of the above
Which of the following is NOT a property of an equilateral triangle?
(1) All sides are equal
(2) All angles are equal
(3) Each angle is 60°
(4) It has one right angle
Which of the following is NOT a type of triangle based on its angles?
(1) Acute triangle
(2) Right triangle
(3) Obtuse triangle
(4) Parallel triangle
A triangle with all sides of different lengths is called a __________ triangle.
A triangle with all sides of equal length is called an __________ triangle.
Fill in the blank: A triangle with one angle greater than 90° is called an __________ triangle.
Fill in the blank: The largest angle in a triangle is always opposite the __________ side.
A triangle has sides of 3 cm, 4 cm, and 5 cm. Is it a right triangle?
If the sides of a triangle are 7 cm, 24 cm, and 25 cm, is it a right triangle?
True or False: A triangle can have more than one right angle.
True or False: The altitude of a triangle is always perpendicular to the base.
