1800-150-456-789
FlagBACK
Flag 10 grade maths> The sum of the radii of two circle is 140...
question mark

The sum of the radii of two circle is 140 cm and the different of their circumference is 88 cm. Find the diameters of the circles

akshaya , 10 Years ago
Grade 12th Pass
anser 2 Answers
Ravi

Last Activity: 10 Years ago

r1+r2=140 ...(1)

2.pi.(r1-r2)=88
r1-r2= (88.7)/(2.22)=28
r1-r2=28 ...(2)

Use equation 1 and 2 to solve for r1 and r2.
Find D1=2r1 and D2=2r2

divya

Last Activity: 9 Years ago

diameters are 126 and 154 resp.

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

Other Related Questions on 10 grade maths

question mark
What are the advantages and disadvantages of mean, median and mode?
10 grade maths
1 Answer Available

Last Activity: 1 Year ago(s)

question mark
Find the sum of the first 100 natural numbers.
10 grade maths
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
AOBC is a rectangle whose three vertices are A(0,-3), O(0,0) and B (4,0). The length of its diagonal is__
10 grade maths
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
For an AP, it is given that first term (a)= 5 and Common Difference (d) = 3 and nth term = 50. Find n and sum of first n terms of AP
10 grade maths
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
The value(s) of k for which the quadratic equation 2x^2 + kx + 2 = 0 has equal roots, is (a) 4 (b) pm 4 (c) -4 (d) 0
10 grade maths
1 Answer Available

Last Activity: 2 Year ago(s)