Question

Each of equal sides of isosceles right triangle is 20 cm. What is the semi perimeter of the triangle​

Answer 1

Answer:

SEMI PERIMETER OF THE TRIANGLE IS 34cm

Step-by-step explanation:

AB=20cm

BC=20cm

AC=?

By Pythagoras theorem,

AC^2 = AB^2 + BC^2

AC^2 = (20)^2 + (20)^2

AC^2 = 400 + 400

AC^2 = 800

AC = √800

AC = 28

TOTAL PERIMETER OF TRIANGLE,

20 + 20 + 28

= 68

THEREFORE THE SEMI PERIMETER,

68÷2

= 34cm