Triangles and Angles Concepts

What is the HCF of 40 and 50?

• 30

• 20

• 5

• 10

What is the LCM of 18, 30, and 36?

• 180

• 90

• 60

• 120

How many millions are in the number 34,768,172?

• 4

• 347

• 3

• 34

What is the decimal representation of 1/4?

• 0.1

• 0.25

• 0.75

• 0.5

If a number is multiplied by 10, what happens to its value?

• It doubles

• It decreases ten times

• It increases ten times

• It remains the same

What type of triangle has all three sides equal in length?

• Isosceles Triangle

• Scalene Triangle

• Equilateral Triangle

• Right Triangle

What is the measure of a right angle?

• 60 degrees

• 90 degrees

• 120 degrees

• 180 degrees

Which of the following angles is greater than 90 degrees but less than 180 degrees?

• Straight Angle

• Right Angle

• Acute Angle

• Obtuse Angle

If two angles add up to 90 degrees, what are they called?

• Reflex Angles

• Complementary Angles

• Adjacent Angles

• Supplementary Angles

What type of triangle has one angle that is a right angle?

• Scalene Triangle

• Right Triangle

• Obtuse Triangle

• Acute Triangle