Mathematics-Heron's Formula [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 9 - 17 of 43

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Question 9

Question MCQ▾

One side of an equilateral triangle is 16 cm. Its area is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 10

Question MCQ▾

If the altitude of an equilateral triangle is cm, its area is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 11

Question MCQ▾

The perimeter of a rhombus is 36 cm and one of its diagonals is 6 cm. The length of the other diagonal is

Choices

Choice (4)Response

a.

cm

b.

cm

c.

cm

d.

cm

Edit

Question 12

Question MCQ▾

The area of a triangle whose sides are 12,13 and 15 cm.

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 13

Question MCQ▾

The adjacent sides of a parallelogram are 8 cm and 18 cm. The ratio of its altitudes is

Choices

Choice (4)Response

a.

6: 8

b.

18: 3

c.

8: 9

d.

4: 9

Edit

Question 14

Question MCQ▾

The area of a rhombus is 96 and one of its diagonal is 12 cm. Its perimeter is

Choices

Choice (4)Response

a.

25 cm

b.

30 cm

c.

40 cm

d.

84 cm

Edit

Question 15

Question MCQ▾

One side of an equilateral triangle is 9 cm. Its area is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 16

Question MCQ▾

In a quadrilateral the sides are 8, 15,13, 18 units and the angle between first sides is a right angle. The area of quadrilateral is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 17

Question MCQ▾

The sides of a triangle are 22 cm, 30 cm and 32 cm. The altitude to largest side is

Choices

Choice (4)Response

a.

b.

c.

cm

d.

Edit