3m
3 m
2.6 m
5 m
1.5 m
1.5 m
what is the surface area including the floor

total surface area = area of the two equilateral triangles + area of the 3 rectangles,

= 2(√3/4 a²) + 3( l x b )

= 2[√3/4 (3)²] + 3( 5 x 3 )

= 2 x 3.9 + 45

= 7.8 + 45

= 52.8 m²

00

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it