In a right angled triangle, the acute angles are in the ratio 4:5. Find the angles of the triangle in degree and radian

since we've a right angled triangle

therefore , one angle of the triangle is 90°

applying Angle Sum Property of triangle which states that the sum of all the angles of a triangle is equal to 180° , we get

therefore , the angles are

hope helpful~

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.