Triunghiurile echilaterale ABC și BCD sunt situate în plane diferite, iar E este mijlocul
laturii BC. Demonstrați că BC 1 (ADE).(dau coroana )​

The deck that kenneth is building is in the shape of a parallelogram abcd the measure of angle c is one third the measure of angle b find the measure of each angle of the deck

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.