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Clock Geometry. Half Past Quarter Past Quarter Till. How many hours does one revolution of the minute hand around the face of a clock represent?. How many hours does one revolution of the minute hand around the face of a clock represent?. 1.
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Clock Geometry
Half Past Quarter Past Quarter Till
How many hours does one revolution of the minute hand around the face of a clock represent?
How many hours does one revolution of the minute hand around the face of a clock represent? 1
How many minutes does one revolution of the minute hand around the face of a clock represent?
How many minutes does one revolution of the minute hand around the face of a clock represent? 60
If there are 12 numbers on a clock, how many minutes are there between 2 consecutive numbers?
If there are 12 numbers on a clock, how many minutes are there between 2 consecutive numbers? 60 ÷12=5
How many minutes are there between the numbers 12 and 6? 5x6=30
30 is what part of 60? One half
How is another way to express the time 12:30? Half past twelve
How many minutes are there between the numbers 12 and 3? 5x3=15
15 is what part of 60? One quarter
How is another way to express the time 12:15? Quarter past twelve
How many minutes are there between the numbers 9 and 12? 5x3=15
15 is what part of 60? One quarter
How is another way to express the time 12:45? Quarter till one
The Clock as A Geometric Figure
What geometric figure does the face of this clock represent?
What geometric figure does the face of this clock represent? A circle
How many minutes are there in one revolution of the minute hand?
How many minutes are there in one revolution of the minute hand? 60
If a clock can be seen as a circle, how many degrees does each minute represent?
If a clock can be seen as a circle, how many degrees does each minute represent? 360°÷60=6°
How many minutes are there between the numbers 12 and 1 on a clock?
How many minutes are there between the numbers 12 and 1 on a clock? 5
How many degrees are there between the numbers 12 and 1 on a clock?
How many degrees are there between the numbers 12 and 1 on a clock? 6°x5=30°
How many minutes are there between the numbers 12 and 3 on a clock?
How many minutes are there between the numbers 12 and 3 on a clock? 15
How many degrees are there between the numbers 12 and 3 on a clock?
How many degrees are there between the numbers 12 and 3 on a clock? 6°x15=90°
If we draw a line from the center of the clock to the number 12, another line from the number 12 to the number 3, and a third line from the number 3 back to the center of the clock, what geometric figure do we have?
If we draw a line from the center of the clock to the number 12, another line from the number 12 to the number 3, and a third line from the number 3 back to the center of the clock, what geometric figure do we have? A triangle
If there are 90° between the number 12 and the number 3, how many degrees are there in the angle at the center of the circle?
If there are 90° between the number 12 and the number 3, how many degrees are there in the angle at the center of the circle? 90°
Can this triangle be called a right triangle? Yes, a right triangle is a triangle with one 90° angle.
If the three angles of a triangle add up to 180°, and the angle at the center of the circle is 90°, and the other two angles are equal, how many degrees are in each?