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Периметр равнобедренного треугольника ACB с основанием AC равен 40 см, а периметр равностороннего треугольника ACD равен 21 см.
Найди длину боковой стороны равнобедренного треугольника.
СРОЧНО 20 БАЛЛОВ!!!!!!!!!!
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БОЛЬШОЕ СПАСИБООО
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Автор:
hanna - 5 лет назад
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0
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1)21:3=7 см длина АС2)(40-7):2=16,5 см длина АВ=ВСОтвет: 16,5 см
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Автор:
jamarionnorton - 5 лет назад
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0
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СРОЧНО!!!!!!!!! Помогите пожалуйста, нужно найти сказуемое в каждом предложении и определить его временную форму.
Vicar Peter Newman is celebrating success – he has finally passed his driving test. He has been learning to drive for past 17 years, and he has had a total of 632 lessons.
Peter, 34, has spent over 9000 pounds sterling on tuition, he has had 8 different instructors, and he has crashed his car five times. Then, one week ago he changed to an automatic car – and he passed his test immediately. He said last night, “I’ve been praying for a driving licence for over half of my life, and at last my prayers have been answered.”
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