class 9 Herons Formula

Using Heron's Formula, find the Area.

• 38.5 in²

• 17.5 in²

• 27.5 in²

• 13 in²

Tags

CCSS.6.G.A.1

Find the Semiperimeter.

• 35.4

• 17.7

• 11.8

• 70.8

Tags

CCSS.3.MD.D.8

What is the Semi-perimeter.

• 42.1

• 21.1

• 14

• 84.2

Tags

CCSS.3.MD.D.8

Use Heron's Formula to find the Area.

• 50 m²

• 48 m²

• 60 m²

• 120 m²

Tags

CCSS.6.G.A.1

The sides of a triangular plot are in the ratio of 3 : 5 : 7 and its perimeter

is 300 m. Find its area.

• 1500

• $1500\sqrt{3}$

• $1500\sqrt{5}$

• $3000\sqrt{3}$

Tags

CCSS.6.G.A.1

A park, in the shape of a quadrilateral ABCD, has

Angle C = 90º, AB = 9 m, BC = 12 m,

CD = 5 m and AD = 8 m. How much area does it occupy?

• 65.5

• 35.5

• 30

• none of these

what does s indicate in Herons formula

• perimeter

• semi perimeter

• circumference

• Don't Know

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Herons formula is used to find area of

• Triangle

• Quadrilateral

• Both A and B

• Depends on mood

Tags

CCSS.6.G.A.1

Area of an equilateral triangles is A is

•  $\frac{\sqrt{3}}{2}A^2$  

•  $\sqrt{3}A^2$  

•  $4\sqrt{3}A^2$  

•  $\frac{\sqrt{3}}{4}A^2$  

Tags

CCSS.6.G.A.1

An umbrella is made by stitching 10 triangular pieces of cloth of two different colours

(see Fig. 12.16), each piece measuring 20 cm, 50 cm and 50 cm. How much cloth of each

colour is required for the umbrella?

• $200\sqrt{6}$

• $400\sqrt{6}$

• $1000\sqrt{6}$

• $500\sqrt{6}$