The most difficult examples
- Perimeter from area
What is the perimeter of the square if its content is 64 cm2?
- Parabola 3
Find the equation of a parabola with its focus at (0,2) and its vertex at the origin. ?
- Draw a trapezoid
Draw a trapezoid if given a = 7 cm, b = 4 cm, c = 3.5 cm, diagonal AC = 5cm. Solve as a construction task.
- Box and whisker plot
Construct a box and whisker plot for the given data. 56, 32, 54, 32, 23, 67, 23, 45, 12, 32, 34, 24, 36, 47, 19, 43
- Right triangle
Draw a right triangle ABC if |AB| = 5 cm |BC| = 3 cm, |AC| = 4 cm. Draw Thales circle above the hypotenuse of the triangle ABC.
- 10 pieces
How to divide the circle into 10 parts (geometrically)?
- Three points
Mark three points E, F and G in the plane not lie on one line. a) Draw a line segment FG b) Construct halfline (ray) EG c) Draw a line EF
- The sum graphically
Draw a graphically sum of the all sides of 4-gon ABCD.
- Draw it!
Draw two lines c, d that c || d. On line c mark the points A, B. By point A lead perpendicular line to c. By point B lead perpendicular line to c.
- Square ABCD
Construct a square ABCD with cente S [3,2] and the side a = 4 cm. Point A lies on the x-axis. Construct square image in the displacement given by oriented segment SS'; S` [-1 - 4].
- Equation with abs
Solve this equation with absolute value member: ?
What is LCD of the equation of ? ? And what is x?
- Series and sequences
Find a fraction equivalent to the recurring decimal? 0.435643564356
- Solve equation
solve equation: ?
- 6 terms
Find the first six terms of the sequence. a1 = 7, an = an-1 + 6
The diameter of a circular plot is 14 dm. Find the circumference and area.
- Rhombus OWES
OWES is a rhombus given that OW 6cm and one diagonal measures 8cm find the area?
- Trapezium ABCD
In the figure, ABDC is a trapezium in which AB || CD. line segments RN and LM are drawn parallel to AB such that AJ=JK=KP. If AB=0.5m and AP=BQ=1.8m, find the lengths of AC, BD, RN and LM. angle D=angle C=60
- Unit rate
Find unit rate: 6,840 customers in 45 days
A customer purchase three (3) writing pads from a store. She receive k9.70 change from a k10.00 note . How much was it's writing pad cost?