the perimeter of a triangle is 300 cm and its sides are in the ratio 5:12:13 find its area
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perimeter of a triangle = sum of the sides.
let the sides of triangle be 5x,12x,13x.
so,
5x + 12x + 13x = 300
30x=300
x=10 cm.
HOPE THIS WILL HELP YOU......
Answered by
4
Answer:
3000 cm²
Step-by-step explanation:
Given :
- Perimeter of the triangle = 300 cm
- Sides are i the ratio 5:12:13
To find:
- sides of the triangle
Let the sides be 5x,12x and 13x
According to the question:
5x+12x+13x=300
30x=300
x=300/30
x=10
Measurement of first side = 5x = 5×10 = 50 cm
Measurement of second side = 12x = 12×10 = 120 cm
Measurement of third side = 13x = 13×10 = 130 cm
Semi perimeter = perimeter/2 = 300/2 = 150 cm
area =
area =
area = 3000 cm²
The area of the triagle is equal to 3000 cm²
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