Answer:
Area of the new triangle = 0.28125ab square units.
Step-by-step explanation:
Take an example of a right-angled triangle with sides a, b and c.
Where a is the height and b is the base and c is the hypotenuse.
Area of the original triangle is given by: × base × height
In our case, area = × a × b
After the dimensions of our triangle have been decreased to 75%, new area becomes:
× 0.75a × 0.75b = 0.28125ab square units.
Answer:
Volume = 150 cubic yards
Step-by-step explanation:
The basic formula for volume is:
Volume = area of base * height
The image of hexagonal prism is shown attached.
If the base is in different shape, we can use different formula (for that shape the base is in) and find area of base.
But, this problem explicitly gives
Area of Base = 15
Height = 10
We simply substitute in volume formula to find the volume. Shown below:
Volume = Area of Base * Height
Volume = 15 * 10
<u>Volume = 150 cubic yards</u>
