Question

find the area of triangle whose sides are 4.5cm and 1cm and perimeter 10.5cm
​

Answer 1

Answer:

10.5-(4.5+1)

10.5-5.5

=5

Answer 2

Answer:

Step-by-step explain

perimeter =sum of all sides of triangles

10.5cm=4.5cm+1cm+x

10.5 cm=5.5cm+x

10.5cm-5.5cm=x

x=5 cm

area of triangle=