Find the radii of the two circles , Mathematics

Assignment Help:

The sum of the diameters of two circles is 2.8 m and their difference of circumferences is 0.88m. Find the radii of the two circles  (Ans: 77, 63)

Ans:    d1 + d2 = 2.8 m= 280cm

r1+r2 = 140

2 Π (r1 - r2) = 0.88m = 88cm

r1 - r2 =88/2Π = 88x7/44 = 2 x 7 = 14

r1+r2 = 140

r1-r2  = 14

2r1 = 154 r1=77

r2 = 140 - 77 = 63

r1 = 77 cm, r2= 63cm


Related Discussions:- Find the radii of the two circles

Determine the order of the local truncation error, The backwards Euler diff...

The backwards Euler difference operator is given by for differential equation y′ = f(t, y). Determine the order of the local truncation error. Explain why this difference o

The definite integral- area under a curve, The Definite Integ...

The Definite Integral Area under a Curve If there exists an irregularly shaped curve, y = f(x) then there is no formula to find out

The equation of the tangent, Consider the function f(x) = 2x 2 + 1. Find ...

Consider the function f(x) = 2x 2 + 1. Find the equation of the tangent to the graph of f(x) at x = 2. [NOTE: when calculating f'(2), use first principles.

What is this distance expressed in standard notation, The distance from the...

The distance from the sun to the earth is approximately 9.3 × 10 7 miles. What is this distance expressed in standard notation? In order to convert this number to standard not

Experiments probabillity of compound events, what is the expiremental proba...

what is the expiremental probability that the next toss and spin will result in 3 and tail if 1-heads,53.2-heads,49.3-heads,54.1-tail,65.2-tails,71.3-tails,62

Calculus, using 5 rectangles what is the area under a curve using the funct...

using 5 rectangles what is the area under a curve using the function f(x)=3x+4 and boundries [0,2]

Factoring quadratics of the form x2 + bx + c, Factoring quadratics of the f...

Factoring quadratics of the form x 2 + bx + c ? This tutorial will help you factor quadratics that look something like this: x 2 + 7x + 12 (Positive coefficients; no lea

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd