Question

De is parallel to bc find lenght of ad given that ae 1.8 cm bd 7.2 cm and ce 5.4 cm

Answer 1

this may be the answer

Answer 2

Answer:

Length of AD= 2.4cm.

Step-by-step explanation:

DE is parallel to BC

By Thales theorem

Thales's theorem states that if A, B, and C are distinct factors on a circle wherein the line AC is a diameter, the angle ABC is a right angle. Thales's theorem is a unique case of the inscribed angle theorem.

$AD/BD=AE/CE \\ AD/7.2=1.8/5.4 \\ AD=1.8×7.2/5.4 \\ AD=12.96/5.4 \\ AD= 2.4CM$

Length of AD= 2.4cm

Basic Proportionality theorem turned into added via way of means of a well-known Greek Mathematician, Thales, therefore it's also referred to as Thales Theorem.

• According to him, for any equiangular triangles, the ratio of any corresponding facets is continually the same.
• Based in this idea, he gave theorem of primary proportionality (BPT).
• This idea has been added in comparable triangles.
• If triangles are much like every different then,

1. Corresponding angles of each the triangles are equal
2. Corresponding sides of each the triangles are in proportion to every different.

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