Advertisements
Advertisements
Question
The sides of a triangle are in the ratio 7 : 5 : 3 and its perimeter is 30 cm. Find the lengths of sides.
Advertisements
Solution
Perimeter of a triangle = 30 cm.
Ratio among sides = 7 : 5 : 3
Sum of ratios 7 + 5 + 3 = 15
Length of the first side = `30 xx (7)/(15)` = 14cm
Length of the second side = `30 xx (5)/(15)` = 10cm
Length of the third side = `30 xx (3)/(15)` = 6cm
∴ Sides are 14cm, 10cm, 6cm.
APPEARS IN
RELATED QUESTIONS
Find the ratio of the following in the simplest fcrm:
432 and 120
Find the triplicate ratio of the following :
`sqrt 15 : sqrt 18`
Find the sub-triplicate ratio of the following :
m3n6 : m6n3
Express the following ratios in its simplest form :
`2 1/3 : 3 1/2: 1 1/4`
A field is 80 m long and 60 m wide. Find the ratio of its width to its length.
State true or false :
A ratio equivalent to 7 : 9 is 27 : 21.
Express the given ratio in its simplest form: 200 m : 5 km
If A : B = 2 : 3, B : C = 4 : 5 and C : D = 6 : 7, find A : D
The ratio of the number of sides of a triangle to the number of sides of a rectangle is
The students of a school belong to different religious backgrounds. The number of Hindu students is 288, the number of Muslim students is 252, the number of Sikh students is 144 and the number of Christian students is 72. Find the ratio of the number of Hindu students to the number of Christian students.
