alleryہیرون کے فارمولے کے مطابق، 13، 14 اور 15 cm کے ساتھ ایک مثلث کا رقبہ کیا ہے؟
A42 cm²
B168 cm²
C91 cm²
D84 cm²
Answer & Solution
Correct answer: D. 84 cm²
نیم فریم 21 ہے، لہذا رقبہ 21 x 8 x 7 x 6 = 84 مربع سینٹی میٹر کا مربع جڑ ہے۔
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