Question

the area(in square units) of an iscoscelles triangle whose base is 'a' are equal sides are of length'b'​

Answer 1

Answer:

use herons formula for it and put the values

Answer 2

Answer:

Solution

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Correct option is

A

4

a

4b

2

−a

2

In an isosceles triangle, altitude is bisect to base. Therefore,

Altitude =

(Sidelengthofequalside)

2

−(

2

base

)

2

=

b

2

−

4

a

2

Now, area of isosceles △=

2

1

×altitude×base

=

2

1

×

b

2

−

4

a

2

×a

=

4

1

×a

4b

2

−a

2

Step-by-step explanation:

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