Advertisements
Advertisements
प्रश्न
The sides of a triangle are in the ratio 7 : 5 : 3 and its perimeter is 30 cm. Find the lengths of sides.
Advertisements
उत्तर
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
संबंधित प्रश्न
If a : b = 3 : 8, find the value of `(4a + 3b)/(6a - b)`.
Convert the following percentage to fractions and ratio:
2.5%
If a: b = 4: 7, find the following:
`(5"a" + 2"b")/(5"a" - 2"b")`
If p : q = 2 : 5 , q : r = 4 : 3, then find p : r
Find the duplicate ratio of the following :
(a+b): (a2- b2)
Express the given ratio in its simplest form: 6 months: `1 1/3` years
A certain sum was divided among A, B and C in the ratio 7 : 5 : 4. If B got Rs 500 more than C, find the total sum divided.
The ratio of income to savings of a family is 11 : 2. Find the expenditure if the savings is Rs 1520.
A typist has to type a manuscript of 40 pages. She has typed 30 pages of the manuscript. What is the ratio of the number of pages typed to the number of pages left?
There are 20 girls and 15 boys in a class. What is the ratio of number of girls to the number of boys?
