What is the value of x in the triangles to the right?
A. 9
B. 12
C. 15
D. 17.5

The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place

5/6+7/8what is the answer sealsdbdbshd

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why