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1 Elementary Shapes Flashcards

(10 cards)

1
Q

What are the three ways to compare line segments?

A
  1. By observation.
  2. Using Tracing Paper
  3. Ruler and Divider
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2
Q

What is complete angle, right angle, straight angle?

A

Complete angle - One revolution which makes 360 degrees. If we stand in direction and make a complete angle, we end up in the same direction.
Right angle - one fourth of the complete angle is right angle which makes 90 degrees. If we stand in one direction and make a right angle (Clockwise or anticlockwise) we end up in the adjacent direction.
Straight angle - Half revolution makes one straight angle which is 180 degrees. Two right angles make one straight angle. If stand in one direction and make a straight angle, we end up in opposite direction.

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3
Q

What is acute, obtuse and reflex angle?

A

Acute - Less than right angle.
Obtuse - Greater the right angle but less than straight angle.
Reflex angle - Greater than one straight angle but less than one complete angle.

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4
Q

What is a Quadrant?

A

Section that covers a right angled space

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5
Q

What is RA tester?

A

It is an improvised tester made out of any shape to find out a right, acute, obtuse, straight, reflex and complete angle.

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6
Q

Is an edge of a shape has to a staright line like line segment or can it be a curved? If yes, give a shape that have curved edge?

A

Edge can be curved also. Protractor has a curved edge.

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7
Q

What is the tool we use for measuring angles?

A

Protractor

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8
Q

Can we use divider to measure angles?

A

No

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9
Q

What are perpendicular lines?

A

If two lines meet at a point and angle between them is right angle

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10
Q

What is a perpendicular bisector?

A

If a line intersects another line at mid point with right angle then it is a perpendicular bisector

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