Chapters
Exercise 1
Determine the height, h, of the drawing below:
Exercise 2
Calculate the distance from point A to point B.
Exercise 3
Calculate the distance between the points A and B.
Exercise 4
Calculate the radius of the circle circumscribed in a triangle, where A = 45 °, B = 72 ° and a = 20m.
Exercise 5
The radius of a circle measures 25 m. Calculate the angle between the tangents to the circle, drawn at the ends of a chord with a length of 36 m.
Exercise 6
The diagonals of parallelogram ABCD measure 10 cm (AC) and 12 cm (BD), and the angle that they form in the centre is 48° 15'. Calculate the length of the sides AD and AB.
Solution of exercise 1
Determine the height, h, of the drawing below:
Solution of exercise 2
Calculate the distance from point A to point B.
Solution of exercise 3
Calculate the distance between the points A and B.
Solution of exercise 4
Calculate the radius of the circle circumscribed in a triangle, where A = 45 °, B = 72 ° and a = 20m.
Solution of exercise 5
The radius of a circle measures 25 m. Calculate the angle between the tangents to the circle, drawn at the ends of a chord with a length of 36 m.
In the quadrilateral AOBT, the angles A and B are right angles.
Solution of exercise 6
The diagonals of parallelogram ABCD measure 10 cm (AC) and 12 cm (BD), and the angle that they form in the centre is 48° 15'. Calculate the length of the sides AD and AB.
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