Найдите площадь треугольника, если его катеты равны 10 и 12

За торемою піфагора знаходимо гіпотенузу: 10квадрат+12квадрат= 100+144=15,62 тепер за формулою герона знаходимо площу s=корінь з p(p-a)(p-b)(p-c) щоб знайти p p=a+b+c ділено на 2 p=10+12+15,62: 2=1,40 s=1,40(1,40-10)(1,40-12)(1,40-15,62)=множ і отримаєш відповідь!

S=1/2×a×b=1/2×10×12=60 квадр.единиц

1)john and i went for a walk. i had difficuly keeping up with him because he  was walking  so fast.

2) sue was sitting on the ground. she was out of breath. she had been running

3)when i arrived, everybody was sitting round the table with their mouths full. they were eating

when i arrived, everybody was sitting round the table and talking.their mouths were empty, but their stomachs were full. they  had already eaten

5) jim was on his hands and knees on the floor. he was looking for his contact lens

6) when i arrived, kate  was waiting for me. she was annoyed with me because i was late and she  had  been waiting for a long time

7) i was sad when i sold my car. i had  had it for a very long time

8) we were extremely tired at the end of the journey. we had been travelling for more than 24 hours