Question

One of the acute angle of a right angled triangle is 42 degrees. Find the other acute angle

Answer 1

CM – median to the hypotenuse in a right triangle BM = CM, i.e. ΔBMC – isosceles or MBC = BCM = β.
From the angle sum theorem in ΔMBC it follows that:
β + β + 42º = 180º β = 69º.

Answer 2

42+ 90=132
angles in a triangle =180
180-132=48

answer 48