## GEOMETRY QUESTIONS-6

Question 66-) If ABC is triangle, [AB] perpendicular [AC], [DE] perpendicular [BC], [FD] bisector, | BE | = | EC |, if m (FDE) = 74 °; How many degrees is m (FCB) = α?

Question 67-) If ABC triangle, [AD] perpendicular [BD], | BC | = 2 | AD |, m (BAD) = m (DAC) = 53 °; How many degrees is m (DBC) = x?

Question 68-) If ABC right triangle, | BE | = 2 | CD |, m (CBA) = 20 °, m (CDA) = 40 °; How many degrees is m (DAE) = x?

Question 69-) ABC is an equilateral triangle, | EB | = | EC | if; m (BAE) = How many degrees is x?

Question 70-) ABC is an equilateral triangle, [AB] parallel [PD], [AC] parallel [EP], [PN] perpendicular [AC], | PD | = 2 cm, | PE | = 3 cm, | PN | = 2 root if 3 cm; How many cm is a side of triangle ABC?

Question 71-) ABC equilateral triangle, [RS] perpendicular [AB], [RK] perpendicular [BC], [RP] perpendicular [AC], | SR | = 9 br, | RK | = 3 br, | RP | = If 10 br; What is the perimeter of triangle ABC?

Question 72-) If ABC is an equilateral triangle, m (EPN) = 60 °, | BP | = 5 cm, | PC | = 12 cm, | AE | = 11 cm; | AN | = how many cm is x?

Question 73-) If ABC is an equilateral triangle, m (DEA) = 105 °, | BC | = | AD |, | AB | = 4 cm; | BD | how many cm?

Question 74-) If ABC is an equilateral triangle, | BD | = 3 | CD |, | AD | = 3 root7 cm; | AB | = how many cm is x?

Question 75-) If ABC and DBE are equilateral triangles, | DC | = 7 cm, | EC | = 8 cm; | ED | how many cm?

Question 76-) If ABC is an equilateral triangle, [BE] perpendicular [AD], | BE | = | CD |, | AF | = | FB |, m (BFD) = α; How many degrees is α?

Question 77-) If ABC is a right triangle, [AB] perpendicular [AC], [ED] parallel [BC], | AE | = 4 cm, | DC | = 3 cm; How many cm² is the area (EBD)?

Question 78-) If ABC is a triangle, [DE] perpendicular [EC], | EC | = 6 cm, | DE | = 8 cm, | AD | = 5 cm, | BE | = 10 cm; How many cm² is the area (ABED)?