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  1. 9th
  2. Maths
  3. Heron's Formula
  4. Area of a Triangle

Area of a Triangle

Heron's Formula
Maths
Class 9

Overview

State and verify Heron's formula and apply it to triangles.

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Related Questions to study

What is the area of a right angled isosceles triangle whose hypotenuse is 

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The sides of a triangle are , and receptively. What is the perimeter of the  triangle?

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Suman made a picture with some white paper and a black paper as shown in figure. White paper is available at her home and free of cost. The cost of black paper used is at the rate of paise per , then the total cost of the black paper used. (Take and ) is .

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The base of a triangular field is 2.4 times its height. If the cost of levelling the field at the field at the rate of Rs. 20 per square metre is Rs. 9,600; find its base and height.

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A wire when bent in the form of a square encloses an area  576 cm. Find the largest area enclosed by the same wire when bent to form an equilateral triangle.

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Area of a triangle having base and altitude is:

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If the distance from the vertex to the centroid of an equilateral triangle is 6 cm, then what is the area of the triangle? 

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One of the equal sides of an isosceles triangle is 13 cm and its perimeter is 50 cm. Find the area of the triangle in cm

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Find the real value of such that and are lengths of the sides of a triangle.

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In figure, altitude RH = 15 and  is drawn parallel to , What must be the length of so that the area of  the area of RQP ?

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