D and E are the midpoints of side AB and AC of a triangle ABC, respectively and BC=6cm. If DE || BC, then the length of DE is:

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D and E are the midpoints of side AB and AC of a triangle ABC, respectively and BC=6cm. If DE || BC, then the length of DE is:

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(a)2.5

(b)3
(c)5
(d)6

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Class 10 Maths Rohit QNA 3 years 2021-12-29T13:15:16+00:00 2021-12-29T13:15:16+00:00 1 Answer 36 views Enlightened 0

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A scale drawing of an object is the same shape at the object but a different size. The scale of a drawing is a comparison of the length used on a drawing to the length it represents. The scale is written as a ratio. The ratio of two corresponding sides in similar figures is called the scale factor Scale factor= length in image / corresponding length in object If one shape can become another using revising, then the shapes are similar. Hence, two shapes are similar when one can become the other after a resize, flip, slide or turn. In the photograph below showing the side view of a train engine. Scale factor is 1:200 This means that a length of 1 cm on the photograph above corresponds to a length of 200cm or 2 m, of the actual engine. The scale can also be written as the ratio of two lengths.The length of AB in the given figure:
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A scale drawing of an object is the same shape at the object but a different size. The scale of a drawing is a comparison What is the actual width of the door if the width of the door in photograph is 0.35cm?of the length used on a drawing to the length it represents. The scale is written as a ratio. The ratio of two corresponding sides in similar figures is called the scale factor Scale factor= length in image / corresponding length in object If one shape can become another using revising, then the shapes are similar. Hence, two shapes are similar when one can become the other after a resize, flip, slide or turn. In the photograph below showing the side view of a train engine. Scale factor is 1:200 This means that a length of 1 cm on the photograph above corresponds to a length of 200cm or 2 m, of the actual engine. The scale can also be written as the ratio of two lengths.
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Rohit QNA Enlightened · Answer 1 · 2021-12-29T13:15:26+00:00

Rohit QNA Enlightened

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2021-12-29T13:15:26+00:00 December 29, 2021 at 1:15 pm

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Answer: b
Explanation: By midpoint
theorem,
DE=½ BC
DE = ½ of 6
DE=3cm

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D and E are the midpoints of side AB and AC of a triangle ABC, respectively and BC=6cm. If DE || BC, then the length of DE is:

D and E are the midpoints of side AB and AC of a triangle ABC, respectively and BC=6cm. If DE || BC, then the length of DE is:

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