the ratio of side of triangle are 12 ratio 27 ratio 25 if the perimeter of the triangle is 540 cm find the length of sides
Answers
Kindly Refer to the given figure Attached ^^""
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★ the ratio of side of triangle are 12 ratio 27 ratio 25 if the perimeter of the triangle is 540 cm find the length of sides .
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★ Ratio of the sides of the triangle = 12 : 17 : 25
Let the common ratio be x then sides are 12x, 17x and 25x
★ Perimeter of the triangle = 540cm
- 12x + 17x + 25x = 540 cm
⇒ 54x = 540cm
⇒ x = 10
- Sides of triangle are,
★ 12x = 12 × 10 = 120cm
★ 17x = 17 × 10 = 170cm
★ 25x = 25 × 10 = 250cm
- Semi perimeter of triangle(s) = 540/2 = 270cm [ Using heron's formula ]
- Area of the triangle = √s (s-a) (s-b) (s-c)
= √270(270 - 120) (270 - 170) (270 -250) cm2
= √270 × 150 × 100 × 20 cm 2
= 9000 cm2
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Kindly Refer to the given figure Attached ^^""
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QUESTION:-
★ the ratio of side of triangle are 12 ratio 27 ratio 25 if the perimeter of the triangle is 540 cm find the length of sides .
________________________________________________
SOLUTION:-
★ Ratio of the sides of the triangle = 12 : 17 : 25
Let the common ratio be x then sides are 12x, 17x and 25x
★ Perimeter of the triangle = 540cm
12x + 17x + 25x = 540 cm
⇒ 54x = 540cm
⇒ x = 10
Sides of triangle are,
★ 12x = 12 × 10 = 120cm
★ 17x = 17 × 10 = 170cm
★ 25x = 25 × 10 = 250cm
Semi perimeter of triangle(s) = 540/2 = 270cm [ Using heron's formula ]
Area of the triangle = √s (s-a) (s-b) (s-c)
= √270(270 - 120) (270 - 170) (270 -250) cm2
= √270 × 150 × 100 × 20 cm 2
= 9000 cm2