MATH:
EVALUATION:
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ANSWER:
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1. 30ft²
Solution:
Area of Triangle = 1/2 × 5 × 4 = 10ft²
Area of Rectangle = 10 × 4 = 40ft²
Area of shaded region = 40ft² ― 10ft² = 30ft²
2. 46mm
Solution:
Perimeter = all sides
= 11mm + 7mm + 5mm + 5mm = 28mm
= 28mm + 5mm + 6mm + 7mm = 46mm
3. 66.28m²
Solution:
Area of rectangle + Area of circle
60 + 2π
60 + 6.28
= 66.28m²
4. 13.6cm²
Solution:
Area of Square = 8cm
Radius = 5cm
3.14 × 5² ― 8cm² = 77.6
77.6 ― 64cm² = 13.6cm²
5. 20m²
Solution:
L × W
= 6m × 4m = 24m²
The area of 4 triangle (multiply 4 in 1 just in case)
= 4 × 1 = 4m²
= 24 ― 4 = 20m²
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