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melamori03 [73]
2 years ago
6

Two triangles aresimilar.The length of a side of one of the triangle is 6times that of the corresponding sides of the other.Find

the ratio of the perimeter and the area of the triangle
Mathematics
1 answer:
GalinKa [24]2 years ago
6 0

Answer:

Ratio = 1 : 6 --- of perimeters

Ratio = 1: 36 --- of areas

Step-by-step explanation:

Given

Represent the sides of the first triangle with x, y and z

The sides of the second triangle will be 6x, 6y and 6z

Solving (a): Ratio of perimeter.

The perimeter of the first is:

P_1 = x + y + z

The perimeter of the second is:

P_2 = 6x +6 y + 6z

Factorize:

P_2 = 6(x +y + z)

The ratio is:

R = P_1 : P_2

R = x + y + z : 6(x + y + z)

Cancel out x + y + z

Ratio = 1 : 6

Solving (a): Ratio of Areas.

If the height of the first is h and the base is b.

The height of the second will be 6h and the base, 6b.

The area of the first is:

A_1 = 0.5 * b * h

A_1 = 0.5bh

The area of the second is:

A_2 = 0.5 * 6b * 6h

A_2 = 18b h

The ratio is:

Ratio = A_1 : A_2

Ratio = 0.5bh : 18bh

Divide by 0.5bh

Ratio = 1: 36

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