Question

Find the perimeter and area (last question I need on my test

Answer 1

Step-by-step explanation:

Let AB be 5cm

AC be 13cm

According to Pyathagros therom

AC²=AB²+BC²

13²=5²+BC²

169=25+BC²

BC²=169-25

BC²=144

BC=√144

BC=12cm

Area of ∆ABC=½×base×hight

=½×12×5

=½×60

=30cm²

Parimeter of ∆ABC=a+b+c

=5+12+13

=30cm