Question

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

Answer 1

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

• Area of triangle = 18 cm²

• Base = 4 cm

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

Find the height of a given triangle.

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

We know that,

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

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

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

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

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

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

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

Answer 2

Answer:

9 cm

Step-by-step explanation:

Area of a triangle is 1/2(base*height)

Area=18

Base=4

So 1/2(4*h)=18

2h=18

h=18/2=9