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Questions and Answers
What is the value of 'x' in the equation 3x + 7 = 16?
What is the sum of the angles in a triangle?
Which of the following is a prime number?
What is the value of 'x' in the equation 2x + 5 = 15?
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Which of the following is an example of a rational number?
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What is the formula to find the area of a circle?
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Study Notes
Algebraic Equations
- To find the value of 'x' in the equation 3x + 7 = 16, subtract 7 from both sides and then divide by 3, resulting in x = 3.
- To find the value of 'x' in the equation 2x + 5 = 15, subtract 5 from both sides and then divide by 2, resulting in x = 5.
Geometry
- The sum of the angles in a triangle is 180 degrees.
Number Properties
- A prime number is a whole number greater than 1 that is divisible only by 1 and itself.
- Example of a prime number: not specified, but could be 2, 3, 5, etc.
Rational Numbers
- A rational number is a number that can be expressed as the quotient or fraction of two integers, e.g. 3/4, 22/7.
Circle Properties
- The formula to find the area of a circle is A = πr^2, where A is the area and r is the radius.
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Description
Test your knowledge on Class 8 Maths topics such as triangle angles, prime numbers, and solving equations. Answer questions like finding the sum of angles in a triangle and determining prime numbers. Challenge yourself with equations like finding the value of 'x'.
