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3. From the given figure, Find the value of x.4x40°3xPOQ4. i) Define Rational Numberii) Give the additive inverse of 3/14,-5/9 i) Explain the three types of triangles based on sides?ii) What is the difference between Median and Altitude?​

Answer»

Question : 4

(i) Define rational number.

ANS :- A rational number is a number that can be expressed in p/q form where q is not equal to 0.

Example of rational number :- 2/5 , 18/67 etc.

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(ii) Give ADDITIVE inverse of 3/14 ,-5/9

Ans :-

  • Additive inverse of 3/14 = -3/14
  • Additive inverse of 18/67 = -18/67

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(III) Explain three types of triangle based on sides.

Ans :- Three types of triangle are :

  • Equilateral triangle : Triangle with all the sides equal
  • Isosceles Triangle : Triangle with 2 sides equal and 1 side UNEQUAL.
  • Scalene Triangle : Triangle with all the sides unequal.

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(iv) What is the difference between median and altitude?

Ans :-

  • Median : Median divides the triangle in 2 equal parts.
  • Altitude : Altitude is the height of triangle.

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