2 years ago

PLEASE PLEASE PLEASE!

Mathematics

1 answer:

Anastaziya [24]2 years ago

6 0

Answer:

Step-by-step explanation:

The area of one of the four triangles is $\frac{1}{2}\times 5 \times 7 = 17.5$ . So together the area of all the four traingles is $4\times 17.5 = 70$

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Find 36% of 4.58. <br> A)0.5122 B)1.6488 C)5.122

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The answer is B 1.6488

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2 years ago

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Gekata [30.6K]

Answer:

Circumference ≈ 50.27

Area ≈ 201.06

Step-by-step explanation:

The circumference of a circle is $2\pi r$ while the area of the circle $\pi r^{2}$

Since the diameter is the radius multiplied by 2, the radius of the circle is 8. So substituting 8 for r, the circumference is 2 × $\pi$ × 8, which is approximately 50.27 (rounded to the nearest hundredth) and the area of the circle would be $\pi$ × 8². 8² is 64 so 64 times pi is approximately 201.06 (rounded to the nearest hundredth)