Use the tangram pieces to make shapes. Choose one shape and copy it on a separate sheet of paper. Find the area of the shape you made

one set of data has more variation than the other. hope this !

triangle eg 7.5 × cos "a" or 7.5 × sin "b" or 6 tan"a"

it should, be 3(+2) or something else i'll come back to this post to explain

i agree with the other guy. clearly abc and dbc differ by an a and a d. therefore we need to switch the d in dbc to an a. to do this we will multiply by 4, since d is the 4th letter of the alphabet and a is the 1st letter. now, like always, divide by 2 for good measure. now abc = 79 * 4 / 2 = 158. so now 9x - 4 = 158. the answer is then 2 * 3 * 3 * 3 * 3   * 3 / 27