alleryત્રિકોણાકાર ધ્વજનો આધાર 18 cm અને ઊંચાઈ 10 cm; તેનો વિસ્તાર શું છે?
A45 cm²
B28 cm²
C90 cm²
D180 cm²
Answer & Solution
Correct answer: C. 90 cm²
ધ્વજનું ક્ષેત્રફળ ½ × 18 × 10 = 90 cm ² છે.
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