alleryਇੱਕ ਤਿਕੋਣੀ ਝੰਡੇ ਦਾ ਅਧਾਰ 18 cm ਅਤੇ ਉਚਾਈ 10 cm; ਇਸਦਾ ਖੇਤਰ ਕੀ ਹੈ?
A45 cm²
B28 cm²
C90 cm²
D180 cm²
Answer & Solution
Correct answer: C. 90 cm²
ਝੰਡੇ ਦਾ ਖੇਤਰਫਲ ½ × 18 × 10 = 90 cm ² ਹੈ।
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