How do you describe an acute angle?

ABC is a right angle triangle. AD is drawn perpendicular to BC. If BC = 9cm, BD = 4 cm then find AB?

The hypotenuse is 6, and one of the leg is 4. How do you find the missing leg length?

How do we find the eccentric angle of ellipse x^2/16+y^2/4=1?

The diameter for the smaller semicircle is 2r, find the expression for the shaded area? Now let the diameter of the larger semicircle be 5 calculate the area of the shaded area?

How do you find the related acute angle? + Example

If angle ABC = angle XYZ what is the mesure of A? Let c= 12, z=18, and x=27

What is 1/3 of a right angle?

5. In the parallelogram below, what is the measure of ∠WXY ? F. 25∘ G. 55..

If ABC is a right triangle and angle A=45°, what degrees are B and C?

Can I make a hexagon with 3 right angles? + Example

A right-angled triangle has an angle of 28^circ and a hypotenuse of 8 cm. What are the lengths of the other two sides?

The figure shows △ABC.¯¯BD¯ is the angle bisector of ∠ABC. What is AD ?