|
EXERCISES FOR TRIANGLES
1. The sides of a triangle are 5 cm, 7 cm and 7 cm. What kind of triangle is it according to its sides?
Draw this triangle and calculate its area.
.
.....................................................................
.....................................................................
.....................................................................
..................................................................... |
|
2. Draw an equilateral triangle, divide it into 3 equal triangle parts. Take the necessary measures and find the areas of these parts.
.
.....................................................................
.....................................................................
.....................................................................
..................................................................... |
3. 3. Find the base of a triangle if the area is S and the altitude is h
| S = 144 cm2 ja h = 18 cm
.......................................................................... |
S = 1 071 m2 ja h = 42 m
.......................................................................... |
4. One side of a right triangle is 12 cm and the hypotenuse is 13 cm. The area of the triangle is 30 cm². Find the other side of the triangle from the hypotenuse.
............................................................................................................................................................
............................................................................................................................................................
............................................................................................................................................................
............................................................................................................................................................
5. . One side of the triangle is 15 cm and the altitude from it is 4 cm. The altitude, from the other side of the triangle is 6 cm. How long is that side?
............................................................................................................................................................
............................................................................................................................................................
............................................................................................................................................................
............................................................................................................................................................ |