Help!!!!!!!!!!!!!!!!!!!
1 answer:
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 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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Answer:
The ratios are both identical. (4 over 5 and 4 over 5)
Step-by-step explanation:
Th picture below represent the image you are referring.
sin x = opposite / hypotenuse
opposite side = 4
hypotenuse = 5
sin x° = 4/5
cos y° = adjacent/hypotenuse
adjacent = 4
hypotenuse = 5
cos y° = 4/5
The ratios are both identical (4 over 5 and 4 over 5)
