Which figure appears to have more than 2 lines of symmetry?
2 answers:
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Answer:
Area decreases by 16%
Step-by-step explanation:
Use formula for the area of the triangle
<u>Initial triangle:</u>
The base is 18 cm
The height is 5 cm
The area is
<u>New triangle:</u>
The base is
The height is
The area is
Area decreases by
Answer:
i. When the temperature is above F, it changes to gas.
ii. When the temperature is below F, it changes to solid.
Step-by-step explanation:
Matter generally exists in either a solid, liquid or gaseous form. With each phase having a certain range of temperature.
Temperature scale of a given substance can be either in Celsius, Fahrenheit or Kelvin. And conversion from one scale to another can be achieved. Example, Celsius scale can be converted to Fahrenheit by:
F = θ + 32
where: F is the equivalent temperature in Fahrenheit, θ is the value of temperature in degree Celsius.
Given that: melting point of the substance = C
⇒ F = x
+ 32
= F
The boiling point = C
F = x
+ 32
= F
The melting point of the substance is F, and boiling point is
F.
Therefore, the range of temperatures for which the substance is not in a liquid state are:
i. When the temperature is above F, it changes to gas.
ii. When the temperature is below F, it changes to solid.