NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 9: Perimeter and Area - Problems and SolutionsQuestion 97
Class 7 - Mathematics - Unit 9: Perimeter and Area - Problems and Solutions
Question. 97
Answer:
227 cm²
Detailed Answer with Explanation:
Area = semicircle + triangle.
Semi-circle: radius = 10 cm, area = \(\tfrac{1}{2}\pi r^2 = 157 cm^2\).
Triangle: \(\tfrac{1}{2}\times 17 \times 10 = 85 cm^2\).
Total = 157 + 70 = 227 cm².