Page 266 - ICSE Math 6

SPEED, DISTANCE AND TIME

Distance
• Speed =
Time
• Distance = Speed × Time
Distance
• Time =
Speed
Total distance covered
• Average speed =
Total time taken
5
–1
• 1 km h = m s –1
18
250
–1
• 1 km h = cm s –1
9
18
–1
• 1 m s = km h –1
5
9
–1
• 1 cm s = km h –1
250
OPERATIONS ON ALGEBRAIC EXPRESSIONS

• Sum of like terms = Sum of numerical coefficients × Literal coefficient
• Difference of like terms = Difference of numerical coefficients × Literal coefficient
• Number × Monomial = (Number × Numerical coefficient of monomial) × Literal coefficient

• Product of two monomials = (Product of numerical coefficients) × (Product of literal coefficients)

ANGLES

• 1 complete rotation = 360°
• 1° = 60′

• 1′ = 60″

TRIANGLES AND QUADRILATERALS

• Exterior angle of a triangle + Corresponding interior angle = 180°
• Exterior angle of a triangle = Sum of opposite interior angles of triangle

CIRCLES
• Diameter = 2 × Radius

PERIMETER AND AREA

• Perimeter of a closed figure = Sum of its side lengths
• Perimeter of a rectangle = 2 × (Length + Breadth)
• Perimeter of a square = 4 × (Length of a side)

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