Constructions of Triangles — MATHEMATICS STD 9 — Question
ICSE BoardEnglish MediumSTD 9MATHEMATICSConstructions of Triangles4 Marks
Question
Construct a triangle using the given data: $DE = 6.5\ cm, EF = 5.8\ cm$ and $DF = 4.2\ cm$
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Answer
$DE = 6.5\ cm, EF = 5.8\ cm$ and $DF = 4.2\ cm$
Steps of Construction:
$1.$ Draw $DE = 6.5\ cm$
$2.$ With $D$ as centre and radius $4.2\ cm$, draw an arc.
$3.$ With $E$ as centre and radius $5.8\ cm$, draw another arc to cut the first arc at $F.$
$4.$ Join $DF$ and$ EF.$
Thus, $\text{DEF}$ is the required triangle.
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