Mathematics
Grade9
Easy
Question
What is the value of ‘s’ in the rotation of the triangle about A?
- 3
- 4
- 5
- 6
Hint:
compare corresponding parts of triangles and put values to get the answer.
The correct answer is: 4
Rotation is isometry.
r = 5
3s = r + 7 (substitute r = 5)
3s = 5 + 7
3s = 12
s = 4.
corresponding parts of triangles remain same so equate them and get the Unknown values.
