Предмет:
ГеометрияАвтор:
sariahh2ajВ С
А Н Д
АД=АВ (тр-к АВД равнобедренный) и равно СД: (42-3):3=13
НД равно полуразности оснований 1/2(13-3)=5
СН=V13*13-5*5=V144=12
Автор:
paul4g3rТрапеция АВСД, АВ=СД, Диагональ ВД - биссектриса углаВ
Треугольник АВД равнобедренный угол СВД=углуАДВ как внутренние разносторонние = углу АВД
АВ=СД=АД, а + а+ а + 3 = 42
3а = 39
а =13=АВ=СД=АД
СН, ВМ -высоты трапеции, МН=ВС=3, АМ=НД=(13-3)/2=5
треугольник СНД - прямоугольный СН = корень (СД в квадрате -НД в квадрате) =
=корень (169-25)=12
Высота=12
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помогите с заданием:
Use the words given in CAPITALS at the end of each line to form a word that fits the space in the same line.
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Английский языкАвтор:
chazrichardsОтветов:
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помогите с заданием:
Read the text and look carefully at each line. Some of the lines are correct, and some have a word which should not be there. If a line is correct, put a tick (V), if a line has a word which should not be there, write the word.
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(1)___One hot day a crow wanted some water to drink. It was far from the river (2)___and the crow didn’t want to fly there at for a drink. It flew round and round (3)___but could not to see any water. At last it saw a big jug near the house. The (4)___crow flew down to the jug. It looked into it. There was a little of water in (5)___the jug. The crow put its head into the jug but couldn’t get the water. The (6)___crow flew into the air, then it flew down on the jug. It has wanted to break (7)___it. But the jug was strong. It could not be break it. The crow could not fly (8)___any more. It sat down to rest. It thought and thought. The crow saw some (9)___small stones on the ground. It had an idea. It took a stone and had put it (10)__into the jug. Then another and another. The water came higher and every (11)__time the stone fell into the jug. Soon the water came very high. The crow (12)__ put its head into the jug and had a drink at the last.
Предмет:
Английский языкАвтор:
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