Question

The base of an isoscele triangle is 4 by 3 cm the perimeter of the traingle is 4 2 by 15​

Answer 1

Answer:

Base=

3

4

cm

Let the equal sides be x.

Perimeter=S

1

+S

2

+S

3

⇒

15

62

=x+x+

3

4

⇒

15

62

=2x+

3

4

⇒2x=

15

62

−

3

4

⇒2x=

15

62−20

⇒2x=

15

42

⇒x=

15

21

∴x=

5

7

Thus,two equal sides =x=

5

7

cm

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