Question

Q8. The area of the triangular field is 225 m. Find its base if its height is 9m.​

Answer 1

Answer:

Base of the triangular field = 50m

Step-by-step explanation:

Given :

Area of the triangular field = 225 m²

Height = 9m

To find :

The base of the triangular field

Taken :

Let the base be x

To find the base use this formula -:

$\boxed{\tt{A=\dfrac{1}{2}\times b\times h}}$

Where,

A = Area

b = Base

h = Height

Solution :

$\leadsto\tt{{225m}^{2}=\dfrac{1}{2}\times x\times9m}$

$\leadsto\tt{{225m}^{2}\times2=x\times9m}$

$\leadsto\tt{450=x\times9m}$

$\leadsto\tt{\cancel{\dfrac{450}{9m}}=x}$

$\leadsto\tt{50m=x}$

So , the base of the triangular field is 50 m .

Answer 2

Question:

• The area of triangular field is 225m² . Find its base of its height is 9m.

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Given:

• Area of triangular field = 225m²
• Height of triangular field = 9m

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To find :

• Base of field.

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Solution:

$\boxed {\rm Area \: of \: triangle \: = \frac {1}{2} \times base \times height }$

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$: \implies \rm { 225 = \frac {1}{2} \times base \times 9}$

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$: \implies \rm { \frac {225 \times 2}{9} = base }$

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$: \implies \rm { 50 = base }$

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Hence, base of triangular field = 50m