Question

4. Find the total area of the four walls of a room 10 m long, 8 m wide
and 3 m
high.

Answer 1

This not a triangle Area is length times width 10x8=80 m squared

Answer 2

268m²

Explanation:

given,

l= 10m

b= 8m

h= 3m

A = ?

we know,

A = 2 (lb + bh + lh)

= 2 (10m×8m + 8m×3m + 10m×3m)

= 2 ( 80m² + 24m² + 30m² )

= 2 ( 134m² )

= 268m²