Answer:
1. C
2. D
3. B
4. A
SOLUTIONS:
1.
Solve for the Area of Shaded Region
A = LW – LW
A = (10 cm × 4.5 cm) — (6 cm × 3.8 cm)
A = 45 cm² – 22.8 cm²
A = 22.2 cm²
2.
Solve for the Area of Circle
A = 3.14(8.2 cm)²
A = 3.14(67.24 cm²)
A = 211.1 cm²
3.
A = s² – s²
A =(6.8 cm)² – (3.6 cm)²
A = 46.24 cm² – 12.96 cm²
A = 33.28 cm²
4.
A = 1/2bh – 3.14r²
A = 1/2(15.6 m × 12.3 m) – 3.14(3.1 m)²
A = 95.94 m² – 30.18 m²
A = 65.76 m²
