Question

Each of two sides of an isiosceles traingle is 7 cm and third sude is 6 cm .Find the area of triangle

Answer 1

Answer:

18.97

Step-by-step explanation:

For more understanding see attachment

Answer 2

Given,

⇒Two side of  Isosceles triangle is 7 cm and 6 cm

∴ suppose the value of a = 7 cm and b = 6 cm

Now Find Area of Isosceles Triangle :

$\boxed{\bold{Area \ of \ Isosceles \ Triangle = \frac{b}{4} \sqrt{4a^{2} - b^{2} }}}$

$\implies \bold{\frac{6}{4} \sqrt{4 \times 49 - 36 }}$

$\implies \bold{\frac{6}{4}\sqrt{196 - 36 }}$

$\implies \bold{\frac{6}{4} \sqrt{160}}$

$\implies \bold{\frac{6}{4} \times 4 \times \sqrt{10}}$

$\implies \boxed{\bold{6\sqrt{10} \ cm^{2} }}$

$\rule{200}2$

There are three types of Triangle on the basis of sides :-

1) Scalene Triangle - A triangle in which all three sides are unequal lengths is called Scalene Triangle .

2) Isosceles Triangle - A triangle in which two sides are equal lengths is called Isosceles Triangle .

3) Equilateral Triangle - A triangle in which all three sides are equal in lengths is called Equilateral triangle .