Question

Triangles unit test 7th grade

Answer 1

1. What is the sum of the interior angles of a triangle?
a) 180 degrees
b) 90 degrees
c) 360 degrees
d) 270 degrees

2. Which of the following is NOT a type of triangle?
a) Equilateral
b) Isosceles
c) Scalene
d) Acute

3. In an equilateral triangle, all three sides are:
a) Congruent
b) Parallel
c) Perpendicular
d) None of the above

4. If one angle of a triangle measures 90 degrees, what type of triangle is it?
a) Acute
b) Obtuse
c) Right
d) Scalene

5. What is the perimeter of a triangle with side lengths of 6 cm, 8 cm, and 10 cm?
a) 15 cm
b) 24 cm
c) 20 cm
d) 18 cm

6. If the angles of a triangle measure 60 degrees, 70 degrees, and 50 degrees, what type of triangle is it?
a) Equilateral
b) Isosceles
c) Scalene
d) Obtuse

7. How many degrees are in the exterior angle of a triangle?
a) 90 degrees
b) 180 degrees
c) 360 degrees
d) 120 degrees

8. The Pythagorean Theorem is used to find the lengths of the sides of which type of triangle?
a) Equilateral
b) Isosceles
c) Right
d) Scalene

9. If two sides of a triangle measure 5 cm and 7 cm, what is the possible range of the length of the third side?
a) 1 to 11 cm
b) 2 to 12 cm
c) 3 to 10 cm
d) 4 to 9 cm

10. In a triangle, the side opposite the right angle is called the:
a) Hypotenuse
b) Adjacent side
c) Opposite side
d) None of the above

Answers:
1. a) 180 degrees
2. d) Acute
3. a) Congruent
4. c) Right
5. b) 24 cm
6. c) Scalene
7. d) 120 degrees
8. c) Right
9. d) 4 to 9 cm
10. a) Hypotenuse