SmartMaths
What is the sum of the 3 angles of a triangle?
a) 180º
b) 360º
c) 90º
d) 270º
.
Which is the length of a circumference with 20 cm of diameter?
a) 62,83 cm
b) 314,15 cm
c) 125,66 cm
d) 1256,6 cm
Angles larger than 90 and less than 180 are:
a) Acute
b) Obtuse
c) Reflex
d) Right
Is a right triangle if its sides measure 3, 4 and 5 cm?
a) No
b) Yes, with 5 as hypotenuse
c) Yes, with 4 as hypotenuse
d) Yes, with 3 as hypotenuse
.
What is the sum of the angles in a square?
a) 180º
b) 360º
c) 90º
d) 270º
If two angles are lying on a straight line and one angle is 122° then the other angle is:
a) 78
b) 58
c) 168
d) 38
Which of the following polyhedron is not regular?
a) Dodecahedron
b) Octahedron
c) Pyramid
d) Icosahedron
Two sides of an isosceles triangle measure
3 and 7. Which of the following could be
the measure of the third side?
a) 9
b) 7
c) 5
d) 2
Calculate the volume of a cube which has 3 cm of side
a) 30 cm3
b) 29 cm3
c) 2, 9 cm3
d) 27 cm3
