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two identical centers intersect at the center

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Q. Two identical circles intersect so that their centers , and their point of which they intersect , form a square of 1cm. Find the area of the portion which is common to the two circles.

A. area of square=1 cm^2
area of one sector=90/360*3.14*1 cm^2 =0.785 cm^2
area of remaining portion=area of sq.-area of one sector=.215cm^2
common area of both the circle= 1-(2*0.215)=0.572cm^2
9 years agoHelpfull: Yes(3) No(0)

TCS Other Question

which number is added to 5678 to give reminder of 35 In the polynomial f(x) = x^5 + a*x^3 + b*x^4 +c*x + d, all coefficients a, b, c, d are integers. If 3 + sqrt(7) is a root, which of the following must be also a root?(Note that x^n denotes the x raised to the power n, or x multiplied by itself n times. Also sqrt(u) denotes the square root of u, or the number which when multiplied by itself, gives the number u)?

a. 3-sqrt(7)

b. 3+sqrt(21)

c. 5

d. sqrt(7) + sqrt(3)

Sol: Option A