# Exam Exam

1.- Classify this triangle: a) Scalene acute triangle b) Scalene right-angled triangle c) Scalene obtuse triangle d) Isosceles right-angled triangle

2.- Decide which of the following sentences is true:

 a) The three perpendicular bisectors converge at a point called incenter b) The three altitudes converge at a point called center of mass c) The three angle bisectors converge at a point called circumcenter d) The geometric barycenter is the center of mass of the triangle a) Rhombus b) Parallelogram c) Square d) Trapezium

4.- If the catheti of a right triangle measure 18 and 24 cm, the hypotenuse measures:

 a) 15.87 cm b) 30 cm c) 28 cm d) 29.16 cm

5.- If one of the cathetus of a right triangle measures 10 m, and the hypotenuse measures 26 m, the other cathetus measures:

 a) 24 m b) 27.85 m c) 30 m d) 20.11 m

6.- The diagonal of a rectangle whose base is 10 m and the height is 5 metres is:

 a) 11 m b) 12 m c) 11.18 m d) 12.27 m

7.- The area of this paralelogram is: a) 30 cm2 b) 15 cm2 c) 120 cm2 d) 60 cm2

8.- And its perimeter is:

 a) 36 cm b) 34 cm c) 17 cm d) None of them

9.- The perimeter of this trapezium is: a) 46 cm b) 48 cm c) 40 cm d) 42 cm

10.- The area of the purple zone of this figure is: a) 1.62 m2 b) 3.14 m2 c) 2.35 m2 d) None of them