Question

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Answer 1

Step-by-step explanation:

answer 5 is correct options b 50

Answer 2

Before solving the question let me explain terms and concept used in the question.

=> Diameter: Diameter is a chord of circle which passes through center

=> Radius: Radius is distance from the center of a circle to circumference of the circle. It is half of the diameter .

=> Relation between diameter and radius

$\sf\longrightarrow{Radius\:=\:\frac{Diameter}{2}}$

=> Tessellation: Tessellation (or Tiling) is when we cover a surface with a pattern of flat shapes so that there are no overlaps or gaps. Like we do in puzzles.

=> Some formulas:

• $\sf{Area\:of\:rectangle\:=\:Length \times breadth}$
• $\sf{Perimeter\:of\:rectangle\:=\:2\times (Length + breadth)}$

Now, we know all the concept. so, let's solve the questions.

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1)AB is the only line which is between center and circumference of circle and CD is a chord passing through center .

so, option (a) radius = AB and Diameter = CD is the correct answer .

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2)As we know that $\sf{Radius\:=\:\frac{Diameter}{2}}$

Diameter Given = 36cm

Radius = D/2 = 36/2 = 18cm

so, option (c) 18cm is the correct answer .

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3)In all four provided options, only pentagons do not tessellate.

so,option (c) Pentagon is the right answer.

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4)Given that each square tile represent 1 sq. unit.

=> Total square = 5 × 10 = 50 = 50 sq. unit

so, option (b) 50 square unit is the correct answer.

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5)Length = 15 cm and Breadth = 10cm

Perimeter = 2 × ( L + B) = 2 × (15 + 10) = 2 × 25 = 50 cm

so, option (b) 50 cm is the correct answer.

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@BrainlicaLDoll