Problem 659

Find the length s of the circle of radius 75 meters subtended by the center angle radian. Solution:- A center angle is an angle whose vertex is at the center…

Problem 651

The time required to finish a test is normally distributed with a mean of 60 minutes and a standard deviation of 10 minutes. What is the probability that a student…

Problem 507

    Triangle ABC is congruent to triangle DFE. Find x. Solution:- In congruent  triangle angle A  = angle D, angle B = angle F, and angle C = angle…

Problem 503

  A rectangle ABCD has the following sides. Find x and y.   Solution:- In a rectangle opposite sides are congruent. So AB = DC and AD = BC Put…

Problem 502

  YWXZ is a parallelogram with diagonals that intersect at point S. If YS = 34 and SX = 2x – 10, find x.   Solution:-   In a parallelogram…