What is the area of a circle that has circumference of 42 inches
1 answer:
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Answer:
The volume of the given figure is 150 mm³
Step-by-step explanation:
The formula of the volume of the triangular pyramid is V = AH, where
- A is the area of its base
- H is its height
The formula of the area of a triangle is A = bh, where
- b is the length of its base
- h is the length of its height
In the given figure
∵ The pyramid has a triangular base
∵ The triangle has a base of 12 mm and a height of 7.5 mm
∴ b = 12 mm and h = 7.5 mm
→ By using the 2nd formula above, find the area of the base
∴ A = (12)(7.5)
∴ A = 45 mm²
∵ The height of the pyramid is 10 mm
∴ H = 10 mm
∵ A = 45 mm²
→ Substitute them in the first formula above to find the volume
∴ V = (45)(10)
∴ V = 150 mm³
∴ The volume of the given figure is 150 mm³
Answer:
Step-by-step explanation:
Given equation ,
Compare it to <u>slope </u><u>intercept</u><u> </u>form to find the slope which is , we have ,
Now we know that the product of slope of two perpendicular lines is-1 . Hence the slope of the perpendicular line is ,
The given point is (0,-1) , on using <u>Point</u><u> slope</u><u> </u>form of the line we have,