Question

The perimeter of an isosceles triangle is 71/2 cm. If the base is 26/2 cm/ find the length of each equal sides.

Answer 1

Given:

Perimeter of an isosceles triangle = 71/2 cm

Base of an isosceles triangle = 26/2 cm

Find:

Length of each equal side

Solution:

Perimeter of an isosceles triangle is 71/2cm

Base of an isosceles triangle is 26/2 cm

We have,

Let the length of each equal side be 's' cm

We know that,

The perimeter of an isosceles triangle = (2s + b)

=> 71/2 = (2s + 26/2)

=> 71/2 = (4s + 26/2)

=> 71/2 × 2 = 4s + 26

=> 71 = 4s + 26

=> 71 - 26 = 4s

=> 45 = 4s

=> s = 45/4

=> s = 11.25cm.

Hence, the length of each equal side of an isosceles triangle is 11.25 cm.

I hope it will help you.

Regards.

Answer 2

Answer:

Let the present age of Aaron be 'x' years.

Let the present age of Ron be 'y' years

Aaron is 5 years younger than Ron

=> x = y + 5 .......(i).

4 years later Aaron will be twice as old as Ron

Aaron's age = (x+ 4) years

Ron's age = (y+4) years

=> (x + 4) = 2(y + 4

Step-by-step explanation: