Heron's formula class 9 9th Grade Quiz

Heron's formula class 9

Assessment

•

Anuradha Bairagya

•

Mathematics

•

9th Grade

•

44 plays

•

Medium

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10 questions

Show answers

1.

Multiple Choice

2 mins

1 pt

1. The area of a triangle is 150 sq. cm. and its sides are in the ratio 3 : 4 : 5. What is its perimeter?

10 cm

40 cm

35 cm

60 cm

2.

Multiple Choice

2 mins

1 pt

What in the area of an equilateral triangle with side 2 cm?

$\sqrt{6\ }cm^2$

$\sqrt{8}cm^2$

$\sqrt{3}cm^2$

$4\ cm^2$

3.

Multiple Choice

2 mins

1 pt

3. What is the length of each side of an equilateral triangle having an area of

4\sqrt{3}\ cm^2

4 cm

5 cm

3 cm

6 cm

4.

Multiple Choice

2 mins

1 pt

4. The sides of a triangle are 3 cm, 5 cm and 6 cm. What is its area?

$2\sqrt{3}cm^2$

$4\sqrt{14}cm^2$

$5\sqrt{12}cm^2$

$2\sqrt{5}cm^2$

5.

Multiple Choice

2 mins

1 pt

Length of one of the equal sides of an isosceles triangle is 4 cm. If its perimeter is 14 cm, then what is its area?

$7\sqrt{3}cm^2$

$3\sqrt{7}cm^2$

$7\sqrt{7}cm^2$

$21cm^2$

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