Heron's formula. Mathematics CBSE, Class 9: lessons, tests, tasks.

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1.	Introduction to Heron's formula
2.	Area of a triangle - Heron's formula
3.	Area of an equilateral triangle

1.	Choose the correct answer Difficulty: easy	2
2.	Find the correct answer Difficulty: easy	2
3.	Find the area of an equilateral triangle Difficulty: easy	3
4.	Find the area of the triangle Difficulty: medium	3
5.	Calculate the area Difficulty: medium	4
6.	Area of the pizza Difficulty: medium	3
7.	Evaluate the area Difficulty: medium	3
8.	Calculate the area of the digital board Difficulty: medium	3
9.	Find the area of each colour cloth Difficulty: medium	4
10.	Calculate the area of the sign board Difficulty: medium	3
11.	Calculate the area of an isosceles triangle Difficulty: hard	4
12.	Calculate the area and cost of the land Difficulty: hard	4

1.	Training test Difficulty: medium	9
2.	Training test Difficulty: medium	8

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Methodical recommendation

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