Here is the list of free online geometry exercises for calculating distances, perimeters, areas, hypotenuse of a right triangle, vector coordinates. Each corrected exercise is accompanied by hints, reminders and methodological advice to help you practise independently.
Exercise example :
The perimeter of a circle is given by the formula `P=2*pi*r`, where r is the radius of the circle.
Give an approximate value to 2 decimal places of the perimeter of a circle of radius 7.
Exercise example :
The area of a disk is given by the formula `A=pi*r^2`, where r is the radius of the circle.
Give an approximate value to 2 decimal places of the area of a disk of radius 14.
Exercise example :
In the triangle ABC rectangle in A, we give AB=20 and AC=15..
Calculate BC.
Exercise example :
Let(O,`vec(i)`,`vec(j)`) be a reference frame of the plane. Let A and D be two points of coordinates `(13,8)` and `(7,6)` respectively in this frame, compute the coordinates of the vector `vec(AD)`.
3441 vectors | geometry 9th Grade | 10th Grade vector_coordinatesExercise example :
The plane is given an orthonormal reference frame (O,`vec(i)`,`vec(j)`). Let A and D be two points of coordinates (`13`,`8`) and (`7`,`6`) respectively in this frame, calculate the distance between A and D .
3442 vectors | geometry 9th Grade | 10th Grade vector_normExercise example :
Let(O,`vec(i)`,`vec(j)`) be a reference frame of the plane. Let D and H be two points of coordinates `(2,8)` and `(2,7)` respectively in this frame, compute the coordinates of the middle of the segment [DH].
3443 vectors | geometry 9th Grade | 10th GradeExercise example :
The area of a rectangle is given by the formula L*l where L is the length and l is the width. Calculate the area of a rectangle where L=9 and l=6.
11201 perimeters and areas | geometry 6th Grade | 7th Grade area_rectangleExercise example :
The area of a square is given by the formula l*l where l is the length of a side. Calculate the area of a square where l=9.
11202 perimeters and areas | geometry 6th Grade | 7th Grade area_squareExercise example :
The perimeter of a rectangle is given by the formula `2*(L+l)`, where L is the length and l the width.
Calculate the perimeter of a rectangle of length L=20 and width l=12.
Exercise example :
The perimeter of a square is given by the formula 4*l, where l is the length of a side. Calculate the perimeter of a square of length l=20.
11204 perimeters and areas | geometry 6th Grade | 7th Grade perimeter_squareThe geometry topic is available for : 6th Grade, 7th Grade, 8th Grade, 9th Grade, 10th Grade
List of exercises by class : middle and high schools, 6th Grade, 7th Grade, 8th Grade, 9th Grade, 10th Grade, 11th Grade, 12th Grade.