Triangles Unit Test

Conexxus

1 answer

1. What is the sum of the interior angles of a triangle?
a) 90 degrees
b) 120 degrees
c) 180 degrees
d) 360 degrees

2. In a right triangle, what is the name of the side opposite the right angle?
a) Adjacent side
b) Hypotenuse
c) Opposite side
d) None of the above

3. What is the formula to find the area of a triangle?
a) A = 1/2(base x height)
b) A = base x height
c) A = (base + height)/2
d) A = base + height

4. If two sides of a triangle are 5 and 7 units long, what is the possible range of the third side?
a) 2 < x <12
b) 2 < x < 8
c) 12 < x < 14
d) 6 < x < 12

5. If a triangle has angles of 60 degrees, 60 degrees, and 60 degrees, what type of triangle is it?
a) Equilateral
b) Isosceles
c) Scalene
d) Right

6. What is the Pythagorean theorem used for?
a) Finding the area of a triangle
b) Finding the perimeter of a triangle
c) Finding the missing side of a right triangle
d) Finding the sum of the interior angles of a triangle

7. What is the name of a triangle with one angle greater than 90 degrees?
a) Acute triangle
b) Right triangle
c) Obtuse triangle
d) Scalen triangle

8. If two sides of a right triangle are 3 and 4 units long, what is the length of the hypotenuse?
a) 5 units
b) 6 units
c) 7 units
d) 8 units

9. What is the name of the point where the three medians of a triangle intersect?
a) Orthocenter
b) Centroid
c) Circumcenter
d) Incenter

10. If the base of a triangle is 8 cm and the height is 6 cm, what is the area of the triangle?
a) 36 square cm
b) 24 square cm
c) 48 square cm
d) 12 square cm