triangle’s area

23 Oct

Class 9 | Chapter 12 | Heron’s Formula | Exercise 12.1 | Question 2

Class 9 - Heron's Formula, Math - Class 9 | NCERTarea of a triangle, Class 9 math tutorials, heron's formula, heros formula, math, mathemafia, mathematics, NCERT, triangle's area

Question 2: The triangular side walls of a flyover have been used for advertisements. The sides of the walls are 122 m, 22 m and 120 m (see Fig. 12.9). The advertisements yield an earning of ` 5000 per m2…

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23 Oct

Class 9 | Chapter 12 | Heron’s Formula | Exercise 12.1 | Question 1

Class 9 - Heron's Formula, Math - Class 9 | NCERTarea of a triangle, Class 9 math tutorials, heron's formula, heros formula, math, mathemafia, mathematics, NCERT, triangle's area

Question 1: A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side ‘a’. Find the area of the signal board, using Heron’s formula. If its perimeter is 180 cm, what will be the area of the signal…

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