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3 years ago

STD 10

Mathematics

1 answer:

Vladimir79 [104]3 years ago

5 0

Answer:

The answer is c

Step-by-step explanation:

If the area of the two triangles are similar, then Area of ∆ 1 : Area of ∆ 2 =

(Side of ∆ 1)² : (Side of ∆ 2)²

____________________________

Since the area of each triangle is equal to the corresponding side squared.

Area of ∆ = (Side of ∆)² →

√(Area of ∆) = Side of ∆ →

Side of ∆ = √(Area of ∆).

Therefore:

9 : 4 → √9 : √4 = 3 : 2

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Answer:

Perimeter of shape,which is a convex polygon i.e quadrilateral = 24.2 in

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As , Perimeter = Sum of all sides

→ 24.2 = 8.3 + 8.3 + 3.8 + x

→ 24.2 = 16.6 +3.8 + x

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→ 24.2 - 20.4 = x

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