Question

Find the length of segment AC if AB = 7.8 cm and BC = 25 mm. How many solutions are there in each case? a Point B lies on segment AC. Point B lies on line AC.

Answer 1

$Given \: length \:of \: segment \:AB = 7.8 \:cm$

$and \: length \:of \: segment \: BC$

$= 25 \:mm$

$= \frac{25}{10} \:cm$

$= 2.5 \: cm$

$\red{Length \:of \: segment \: AC}$

$= AB + BC$

$\blue{ ( given \: Point \: B \: lies \: on \: segment \: AC )}$

$= 7.8 \:cm + 2.5 \:cm$

$= 10.3 \:cm$

Therefore.,

$\red{Length \:of \: segment \: AC}\green {= 10.3 \:cm }$

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Answer 2

Answer:

GivenlengthofsegmentAB=7.8cm

and \: length \:of \: segment \: BCandlengthofsegmentBC

= 25 \:mm=25mm

= \frac{25}{10} \:cm=

10

25

cm

= 2.5 \: cm=2.5cm

\red{Length \:of \: segment \: AC}LengthofsegmentAC

= AB + BC=AB+BC

\blue{ ( given \: Point \: B \: lies \: on \: segment \: AC )}(givenPointBliesonsegmentAC)

= 7.8 \:cm + 2.5 \:cm=7.8cm+2.5cm

= 10.3 \:cm=10.3cm

Therefore.,

\red{Length \:of \: segment \: AC}\green {= 10.3 \:cm }LengthofsegmentAC=10.3cm

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Step-by-step explanation:

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