Brainliest brainliest brainliest given: the coordinates of isosceles trapezoid jklm are j(-b, c), k(b, c), l(a, 0), and m(-a, 0). prove: the diagonals of an isosceles trapezoid are congruent. as part of the proof, find the length jl brainliest brainliest brainliest

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.