Вопрос по геометрии:

Пожалуйста помогите с задачей по геометрии

Вопрос по математике:

 летом цены на товар снизили на 10%, а зимой повысили на 10%. сравните новую цену и первоначальную

Вопрос по английскому языку:

ПОМОГИТЕ ПОЖАЛУЙСТА!!!

Make up couples or groups of words close in their meaning.

Power, device, possibility, digit, tool, community, relationship, information, energy, engine, transformation, advent, purpose, usage, arrival, memory, instruction, connection, proposition, education, aim, piece, exhibition, construction, assumption, computation, unit, data, journal, bit, concept, kind, basis, screen, storage, network, architecture, universe, current, command, display, motor, mistake, show, suggestion, foundation, distinction, application, society, number, learning, type, idea, web, error, calculation, electricity, world, magazine, difference.

To emerge, to encompass, to shorten, to discover, to go missing, to demand, to alter, to transform, to modify, to appear, to apply, to supply, to define, to provide, to require, to change, to control, to calculate, to increase, to rise, to figure out, to check, to compute, to determine, to use, to cover, to convert, to reduce, to invent, to look for, to break down, to store, to perform, to help, to advance, to include, to search, to involve, to develop, to define, to check, to compute.

Principle, whole, digital, common, following, concise, huge, small, rapid, different, full, movable, important, broad, large, typical, numerical, mobile, brief, big, wide, usual, significant, next, main, various, quick, little, fast, complete, short, general, entire.

Вопрос по другим предметам:

Вопрос по геометрии:

3. Биссектриса угла параллелограмма делит одну из его сторон на отрезки 9 см и б см, считая от вершины, соседней с углом, с которого проведена биссектриса Найти периметр параллелограмма.

помогите, пожалуйста!