The perimeters of two similar triangles are 30 cm and 20 cm respectively. If one side of the first triangle is 9 cm, determine the corresponding side of the second triangle?
Question
Geometry:
The perimeters of two similar triangles are 30 cm and 20 cm respectively. If one side of the first triangle is 9 cm, determine the corresponding side of the second triangle?
By the property of triangle similarity,
Perimeter of first triangle/perimeter of second triangle = side of first triangle/ side of second triangle
Let take side of a second triangle
=> 30/20 = 9/x => x = 6 cm.
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