Can you please tell me if i got these right

Mathematics

2 answers:

oee [108]3 years ago

6 0

Answer:

They are right! Great job!!

PilotLPTM [1.2K]3 years ago

5 0

Those are great and wonderful

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Calculate the shaded area

Anton [14]

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Find Radius :
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Radius of the semicircle = 10 ÷ 2 = 5cm

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Find Area of the semi circle :
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Area of the semi circle = 1/2 πr²
Area of the semi circle = 1/2 x π x (5)²
Area of the semi circle = 12.5π cm²

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Find Radius :
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Radius of the inner circle = 5 ÷ 2 = 2.5 cm

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Find area of inner circle :
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Area of the inner circle = πr²
Area of the inner circle = π x (2.5)²
Area of the inner circle = 6.25π

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Area of the shaded region :
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Area of the shaded region = 12.5π - 6.25π
Area of the shaded region = 6.25π
Area of the shaded region = 19.63 cm²

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Answer: Area of the shaded region = 19.63 cm²
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7 0

4 years ago

The staff has a meeting every morning.how long do they spend on meetings in a fortnight?

Alona [7]

Answer:

isn't a fortnight 14?

Step-by-step explanation:

8 0

3 years ago

The side length of a square can be represented by the expression 2x − 5. Write a polynomial that represents the area of the squa

Helen [10]

Answer: