Herons Formula

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

• $2\sqrt{3}cm^2$

• $4\sqrt{14}cm^2$

• $5\sqrt{12}cm^2$

• $2\sqrt{5}cm^2$

The sides of a triangle are in the ratio of 3 : 4 : 5. If its perimeter is 36 cm, then what is its area?

• $32\ cm^2$

• $54\ cm^2$

• $67\ cm^2$

• $72\ cm^2$

Tags

CCSS.6.G.A.1

The area of triangle with given two sides 18 cm and 10 cm respectively and perimeter equal to 42 cm is:

• $20\sqrt{11}cm^2$

• $19\sqrt{11}cm^2$

• $22\sqrt{11}cm^2$

• $21\sqrt{11}cm^2$

Tags

CCSS.HSG.SRT.D.9

If the sides of a triangle are 8, 8, and 8, what is the area?

• 8

• 15.58

• 27.71

• 62.91

Tags

CCSS.6.G.A.1

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

The sides of a triangle are 16,30,34cm its area is

• 250cm²

• 260cm²

• 245cm²

• 240cm²

Tags

CCSS.6.G.A.1

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

• $2\sqrt{3}cm^2$

• $4\sqrt{14}cm^2$

• $5\sqrt{12}cm^2$

• $2\sqrt{5}cm^2$

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?

• $7\sqrt{3}cm^2$

• $3\sqrt{7}cm^2$

• $7\sqrt{7}cm^2$

• $21cm^2$

Tags

CCSS.6.G.A.1

If the perimeter of an equilateral triangle is 60 cm, then what is its area?

• $100\sqrt{2}cm^2$

• $200\sqrt{2}cm^2$

• $100\sqrt{3}cm^2$

• $200\sqrt{3}cm^2$

Tags

CCSS.6.G.A.1

What is the semi-perimeter?

• 1/2 of the actual perimeter

• A circular object rotated 90 degrees on its axis

• My dog's name

• The distance around a semi truck multiplied by the square root of the perimeter