Time Left: 600 sec

2. The area of triangle, whose sides are 15 cm, 25 cm and 14 cm:

A. A
B. B
C. C
D. D

3. The area of an equilateral triangle of side 6 cm is

A. 18 cm2
B. 9√3 cm2
C. 56√3 cm2
D. 58√3 cm2

4. The perimeter of a rhombus is 146 cm. One of its diagonals is 55 cm. The length of the other diagonal and area of the rhombus are

A. 48 cm,2320 cm2
B. 48 cm,1820 cm2
C. 88 cm, 1320 cm2
D. 48 cm, 1320 cm2

8. The base of an isosceles triangle is 10 cm and one of its equal sides is 13 cm. The area of the triangle is

A. 80 cm2
B. 100 cm2
C. 50 cm2
D. 60 cm2

9. The lengths of a triangle are 6 cm, 8 cm and 10 cm. Then the length of perpendicular from the opposite vertex to the side whose length is 8cm is:

A. 5 cm
B. 4 cm
C. 6 cm
D. 2 cm

11. A carpenter had to make a triangle with sides 5, 6, 5 units. By mistake he made one with sides 5, 8, 5 units. The difference between their areas is:

A. 16 sq units
B. 2 sq units
C. 4 sq units
D. 0 sq units

12. The area of a right triangle of height 15 m and base 20 m is

A. 160 m2
B. 150 m2
C. 210 m2
D. 216 m2

15. The sides of a triangle are in the ratio 25 : 17 : 12 and its perimeter is 540m. The area of the triangle is

A. 12000 m2
B. 5000 m2
C. 9000 m2
D. 10000 m2

18. The area of a right triangle with base 5 m and altitude 12 m is

A. 15 m2
B. 9 m2
C. 50 m2
D. 30 m2