alleryA 7 m by 3 m గోడ 2 m² విండోను కలిగి ఉంది; ఏ ప్రాంతంలో పెయింటింగ్ అవసరం?
A19 m²
B23 m²
C21 m²
D16 m²
Answer & Solution
Correct answer: A. 19 m²
పెయింట్ చేయదగిన ప్రాంతం 7 × 3 − 2 = 19 m².
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