Math Problem Statement
2.8 Choose the best answer for each of the following. Type only the number and letter to the answer in the answer block, e.g., 3.1.5 D [6]
2.8.1 If a triangle is enlarged by factor 3, the area of the enlarged triangle will be … times bigger than the original triangle. (2)
A. 1
B. 3
C. 6
D. 9
2.8.2 If a square is enlarged by factor 2, the area of the enlarged square will be …… times bigger than the original square. (2)
A. 1
B. 2
C. 4
D. 8
E. 16
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Scaling
Area Calculations
Formulas
Area scaling formula: new area = original area × scale factor^2
Theorems
Scaling Theorem: When a 2D shape is scaled by a factor k, the area increases by k^2
Suitable Grade Level
Grades 6-8
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