Question 131-) In the figure, ABCD is rectangular, parallel to [BE] [CF], if 2 | AE | = 3 | EF |, | BE | = 3 root2 cm, | CF | = 13 root2 cm, m (BCF) = 45 °; What is the area of the rectangle?
Question 132-) ABCD square, S; If the cut-off point of [AC] and [EF] is | BF | = 3 cm, | ED | = 6 cm, | AB | = 18 cm; How many cm² is the area of the SFC triangle?
Question 133-) If the area of ABCD square, | DF | = | FC |, FKLN convex quadrilateral is 18 cm²; What is the length of a square in centimeters?
Question 134-) ABCD square, perpendicular to [AP] [PN], perpendicular to [PN] [NC], | AP | = | PN | = | NC | if; What is the area of the square in cm²?
Question 135-) If ABCD is rectangle, [AC] diagonal, perpendicular to [SN] [ND], | AB | = | NC |, | AS | = 1 cm, | SD | = 8 cm; | AN | = how many cm is x?
Question 136-) If PEFT and TKMN are square, perpendicular to [TR] [FK], PRNT concave quadrilateral is 144 cm²; | TR | how many cm?
Question 137-) ABCD is trapezoid, [AB] parallel [DC], if the measure of angle D is twice the measure of angle B, the length of the bottom base is 13 cm, the length of [AD] is 8 cm; What is the length of the upper sole?
Question 138-) ABCD steep trapezoid, | AB | ² + | BC | ² = 8 | BC | if the length of the upper base is 4 cm; how many cm is the side x?
Question 139-) ABCD is trapezoid, [ED] perpendicular [DC], point E is the midpoint of the subbase, 2 | DA | = 3 | EB |, if the height is 2 root 5 cm; What is the total of shaded areas in cm²?
Question 140-) If the diagonals of the trapezoid ABCD are perpendicular to each other, the length of the upper base is 3 cm, the length of the lower base is 8 cm; how many cm is the side x?
Question 141-) ABCD isosceles trapezoid, CAB right triangle, lower base 3 times the upper base, | AD | = 6 cm, | CE | = | EB | if; | AE | = how many cm is x?
Question 142-) If ABCD is trapezoid perpendicular, [DE] and [CE] bisector, | BC | = 9 cm, | AB | = 12 cm; What is the area of the ECD triangle?
Question 143-) ABCD is trapezoid perpendicular, diagonals 6 cm-8 cm and perpendicular to each other, m (EAC) = m (AEC), if the lower floor is 4 times the upper floor; | BE | = how many cm is x?