Question

a length of a triangular fields is 30m , 16m, and 18m respectively. the cost of fencing per metre is Rs 5 . then what is total cost of fencing the field?​

Answer 1

Solution:

Given:

=> Length of triangle = 30 m

=> Breadth of triangle = 16 m

=> Height of triangle = 18 m

To find:

=> Total cost of fencing the triangular field.

Formula used:

$\sf{\implies Area\;of\;triangle=\dfrac{1}{2}\times length\times breadth}$

So, first we will find the area of triangle,

$\sf{\implies Area\;of\;triangle=\dfrac{1}{2}\times length\times breadth}$

$\sf{\implies \dfrac{1}{2}\times 30\times 16}$

$\sf{\implies 240\;m^{2}}$

Hence, area of triangle is 240 m².

Now it is given that the cost of fencing per m² is Rs 5.

Hence, the cost of fencing 240 m² = 240 × 5

=> Rs. 1200

Hence, the cost of fencing 240 m² is Rs. 1200.

Answer 2

Answer:

$\huge{\mathfrak{\underline{\red{Answer:-}}}}$

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Step by step explanation

__________ ______________

Given:-

sides of triangular field=>30m,16m and 18m

______________

To find :-

Cost of fencing around ground

______________

Solution:-

___________

Area of triangle = 1/2 x base x height

=>1/2 x 30 x 16

=>240 m^2

Cost of fencing at the rate of Rs 5 per metre square ;

=>240 x 5

=>1200Rs

_____________

Hence we get answer;