webtigger6 webtigger6 02-05-2024 Mathematics Answered A triangle is shown. A b cm 2 cm C 8 cm B 2 Margaret claims that sinc = b' Select all assumptions that must be true for Margaret's claim to be true. cosC = 82 b 2 sinA = sinc mZA+mZC = 90° The value of b is a perfect square. ☐ b² = 2² + 82