Respuesta :

Answer:

Perimeter of base: 36ft

Height: 15ft

Base area: 50ft

Surface area: 640ft

Step-by-step explanation:

Perimeter of base:

The perimeter is just the line that circles the base. It doesn't include what's inside the line. By that logic:

Perimeter = 16ft + 10ft + 10ft = 36ft

Height:

This can be directly derived from the diagram. Height = 15ft.

Base area:

The formula for the area of a triangle is  [tex]\frac{1}{2\\}[/tex] x base x height.

Area of triangular base = 1/2 x 10ft x 10ft = 50ft

Surface area:

The surface area is the area of all exposed sides of the figure.

Surface area = (50 x 2) + (16 x 15) + 2(15 x 10) = 640ft

50 x 2 - The surface area for both exposed triangles.

16 x 15 - The surface area of the surface facing us.

2(15 x 10) - The surface area of the sides of the figure (They're identical).

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