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1) All EQUILATERAL triangles are similar.
2) DE || AB,
So, In ∆s ADE and ABC,
Angle A is common
Angle ADE = Angle ABC
(Corresponding angles)
So, they are similar.
Hence, AD/DB = AE/EC
EC is 2cm....
3) Denominator = 455 = 13*7*5
So, it has non-terminating repeating decimal.
4) Thales' theorem is also known as BPT (Basic Proportionality Theorem). It states that if a line parallel to one side of a triangle is drawn to intersect other 2 lines, it divides those 2 lines in the same ratio.
Comment in case of any queries
2) DE || AB,
So, In ∆s ADE and ABC,
Angle A is common
Angle ADE = Angle ABC
(Corresponding angles)
So, they are similar.
Hence, AD/DB = AE/EC
EC is 2cm....
3) Denominator = 455 = 13*7*5
So, it has non-terminating repeating decimal.
4) Thales' theorem is also known as BPT (Basic Proportionality Theorem). It states that if a line parallel to one side of a triangle is drawn to intersect other 2 lines, it divides those 2 lines in the same ratio.
Comment in case of any queries
srinidhi41:
bro thanks very much
Wlcm....
Answered by
1
1--equilateral triangle
2--2cm
3--0.1406593 hence non terminating
4--BPT i.e basic proportionality theorun
2--2cm
3--0.1406593 hence non terminating
4--BPT i.e basic proportionality theorun
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