Question

(Mensuration)
समतलिय चित्र (Plane Surface)
1. एउटा त्रिभुजाकार आँगनको किनाराहरू 6 : 5:5 को अनुपातमा छन् र
परिमिति 64 फिट छ । सो आँगनमा प्रति वर्ग फिट रु. 50 को दरले
टाइल बिछ्याउदा कति खर्च लाग्ला ?
The edges of a triangular yard is in the ratio of 6 : 5 : 5 and
perimeter is 64 feet. What is the total cost of tiling the yard at
the rate of Rs. 50 per square feet.
​

Answer 1

Step-by-step explanation:

so let edges be

6x ,5x,5x

now perimeter is = 64 feet

= 6x+5x+5x = 64

= 16x = 64

x= 4

so

6x= 24 ,5x= 20, 5x= 20

now area can be found by heron's formula

which says

s = perimeter/2 = 64/2 = 32 feet

and area

_/[ 32×(32-24)×(32-20)×(32-20)]

_/[32×8×12×12]

12_/(256)

12×16 = 192 per square feet

rate of tilling

192×50 = 9600 rs answer

Answer 2

Answer:

Step-by-step explanation: