The statement “all right angles measure 90 degrees” has a counterexample. true false

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles. i'm desperate.

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.