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3 years ago

The dimensions of the triangle are decreased to 75% Of there original measurements what is the area of the new triangle ?

Mathematics

1 answer:

Alenkasestr [34]3 years ago

8 0

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: $\frac{1}{2}$ × base × height

In our case, area = $\frac{1}{2}$ × a × b

After the dimensions of our triangle have been decreased to 75%, new area becomes:

$\frac{1}{2}$ × 0.75a × 0.75b = 0.28125ab square units.

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What is the perimeter of triangle ABC ?

blagie [28]

Answer:

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Step-by-step explanation:

From C-A, it goes from y=1 to y=5, so that 4 units

From A-B, it goes from x = -1 to x = 4, that is 5 units

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