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1

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60

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60 ÷12=5

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5x6=30

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One half

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Half past twelve

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5x3=15

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One quarter

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Quarter past twelve

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5x3=15

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One quarter

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Quarter till one

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A circle

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360°

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60

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360°÷60=6°

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5

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6°x5=30°

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15

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6°x15=90°

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A triangle

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90°

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Yes, a right triangle is a triangle with one 90° angle.

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180°-90°= 90° 90°÷2=45°

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yes

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Yes, an isosceles triangle is a triangle with two equal sides and two equal angles.

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6°x10=60°

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A triangle

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60°

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180°-60°= 120° 120°÷2=60°

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Yes, a triangle with three 60° angles is an equilateral triangle.

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Triangle A polygon with three sides and three angles. A triangle can be names by its’ side lengths and angles. – Side lengths: isosceles, equilateral,

Triangle A polygon with three sides and three angles. A triangle can be names by its’ side lengths and angles. – Side lengths: isosceles, equilateral,

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