Question

07. To raise social awareness about the hazards of smoking a school decided 10 stait "No smoking
campaign". A student is asked to prepare a campaign banner in the shape of a triangle shown in
the figure. If cost of 1 cm2 of banner is 2 (a) find the cost of the banner and (b) which value is
depicted in the question?
(7,3)
(1, 1)
(6, 1)​

Answer 1

Heyy

The answer is attached in the below picture

Answer 2

Cost of banner of  of "No smoking campaign"  = 10

Step-by-step explanation:

Triangle vertices

(7 , 3)  , (1 , 1)  & ( 6 , 1)

Area of Triangle

= (1/2) | 7 (1 - 1)  + 1 (1 - 3)  + 6(3 - 1) |

= (1/2) | 7(0) + 1(-2) + 6(2) |

= (1/2) | 0 -2 + 12 |

= (1/2) | 10 |

= 10/2

= 5

Cost of banner of 1 cm² = 2

Cost of banner of 5 cm² = 5 * 2 = 10

Social Awareness : Smoking is injurious to Health

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