Mathematics: Area if triangle is 18cm2. The base is 4 cm. What is the height?

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Area if triangle is 18cm2. The base is 4 cm. What

kyleighmarie05

01.02.2022

$\bf \underline{ \underline{Given : }}$

Area of triangle = 18 cm²Base = 4 cm

$\bf \underline{ \underline{To \: find \: out : }}$

Find the height of a given triangle.

$\bf \underline{ \underline{Solution : }}$

We know that,

$\sf \: Area \: of \: traingle = \dfrac{1}{2} \times base \times height$

$\sf \red \star \: Substituting \: the \: values ..$

$\sf \implies18 = \dfrac{1}{ \cancel{2}} \times { \cancel4 }\times height$

$\sf \implies \: 18 = 2 \times height$

$\sf\implies \: height = \cancel\dfrac{18}{2}$

$\sf\implies \: height = 9 \: cm$

$\sf\therefore \: The \: height \: of \: triangle \: is \: 9 \: cm.$

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