Area of triangle (base-altitude formula & herons formula)

Herons's formula

Heron's formula=___.

Formula's used in Herons Formula

If perimeter of a triangle is x cm and its sides are p,q and r cm. what will be the area of triangle ? Use the heron's formula.

Verify area of triangle is ( i ) 1/2 bc sin A (ii) Herons Formula (iii) 1/2(a+b+c)r

If the area of a square with side 'b' is equal to the area of a triangle with base 'b' , then altitude of the triangle is

Perimeter|Area |Area Of Triangle|Area Of Triangle - By Heron's Formula|Practice Problem|NCERT Example|OMR

Find the area of a triangle whose base and altitudes are 8cm and 5cm.