Question

the sides of a triangle shaped sheet are 5 cm,12 cm and 13 cm. find the cost of painting on sheetat the rate of ₹30cm square.​

Answer 1

formula of triangle's perimeter = P =a+b+c

so,

5+12+13=30

cost price of painting = 30*30=90

.

brainliest plz

Answer 2

From the dimensions of triangle, it is clear that it is right angled triangle with 13cm as hypotenuse.

So, area of right triangle = 1/2( product of other two sides)

= 30cm.

Given, cost for 1 sq cm= ₹30

So, cost for triangle= 30 x 30 = ₹900

Hope you have understood.