The formula of the area of the trapezoid:
We have:
Substitute:
Used:
Add one on both sides of the equation. You would end up with -6=x/3. You would then cross multiply, so -6 times 3 and 1 (the denominator for -6) times x and you would get -18=x
Answer:
i think it is R0,90 and R0,180 but i could be wrong
Step-by-step explanation:
Answer:answer is 100; quadrilateral
Step-by-step explanation: