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1. What is the sum of all the interior angles of a triangle?
A
90 degrees
B
270 degrees
C
180 degrees
2. what is the name of a triangle with all sides of different lengths?
A
Equilateral triangle
B
Isosceles triangle
C
Scalene triangle
3. In a right-angle triangle, what is the name of the side opposite the right angle?
A
Hypotenuse
B
Opposite side
C
Adjacent side
4. What is the classification of this triangle?
A
Right triangle
B
Obtuse triangle
C
Acute triangle
5. If the area of a triangle is found with the formula 1/2 *base*height then the area of a triangle whose base=12cm height= 5cm is:
A
35/2 cms
B
30 cms
C
60 cms
6. What is the classification of this triangle? AB=5,39 BC=5,39 CA=7,62
A
Equilateral triangle
B
Scalene triangle
C
Isosceles triangle
7. What is the formula to calculate the perimeter of a triangle with sides a, b, and c?
A
a + b + c
B
a * b * c
C
2 * (a + b)
8. What is the classification of this triangle? AB=10 CMS BC=10 CMS CA=10 CMS
A
Isosceles triangle
B
Scalene triangle
C
Equilateral triangle
9. If in triangle ABC, angle "a" is the one with the smallest measure, then what is the name of the shortest side?
A
A
B
B
C
C
10. Which of the following options is one of the special cases?
A
Isosceles - scalene triangle
B
Scalene right-angled triangle
C
Obtuse rigth-angled triangle