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Questions and Answers
What is the sum of the angles in a triangle?
What is the sum of the angles in a triangle?
- 360 degrees
- 90 degrees
- 180 degrees (correct)
- 270 degrees
Which of the following is a prime number?
Which of the following is a prime number?
- 6
- 11 (correct)
- 15
- 4
What is the product of 7 and 6?
What is the product of 7 and 6?
- 36
- 42 (correct)
- 56
- 48
If a rectangle has a length of 8 units and a width of 3 units, what is its area?
If a rectangle has a length of 8 units and a width of 3 units, what is its area?
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What is the value of the expression $5(3 + 4)$?
What is the value of the expression $5(3 + 4)$?
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Study Notes
Triangle Angles
- The sum of the interior angles of any triangle is always 180 degrees.
Prime Numbers
- A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers.
Multiplication
- The product of 7 and 6 is 42.
Rectangle Area
- The area of a rectangle is calculated by multiplying its length and width.
- In this case, the area is 8 units * 3 units = 24 square units.
Expression Evaluation
- The expression $5(3 + 4)$ can be evaluated using the order of operations (PEMDAS/BODMAS).
- First, we calculate the sum inside the parentheses: 3 + 4 = 7.
- Then, we multiply 5 by 7: 5 * 7 = 35.
- Therefore, the value of the expression is 35.
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