The length of side GF from the similar triangles shown is GF = √10 units
What is an equation?
An equation is an expression that shows the relationship between two or more numbers and variables.
Two triangles are said to be similar if they have the same shape, all the angles are equal and the ratio of corresponding sides are in the same proportion.
In a similar triangle, DE = GF, Hence:
GF/DF = GH/DE
GF / 5 = 2 / GF
GF² = 10
GF = √10
The length of side GF from the similar triangles shown is GF = √10 units
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