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2 years ago

The radius of a circle is 5 cm. What is the radius of another circle whose area is 25 times that of the first one?

Mathematics

1 answer:

zhannawk [14.2K]2 years ago

4 0

Answer:

Step-by-step explanation:

a₁ = πr₁⁵ = 25π cm²

a₂ = 25(25π) = 625π cm²

r₂ = 25 cm

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Express the ratio 5:35 in the form 1:n

Vsevolod [243]

Answer:

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Solve his problem for X and Y

Verizon [17]

Answer:

y = 5, 3; x = 171, 155

Step-by-step explanation:

8y - 15 = y^2

y^2-8y+15=0

y^2-3y-5y+15=0

y(y-3)-5(y-3)=0

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y can be 5 or 3.

x = 180 - (8y - 15)

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2 years ago

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vovangra [49]

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3 years ago

Find the area of the triangle im not sue how to do this best answer gets brainly

vovangra [49]

Given :

▪︎Length of height of this triangle = 16 cm

▪︎Length of base of this triangle = 4 cm

We know that :

$\color{hotpink}\tt \: area \: of \: a \: triangle \color{plum}= \frac{1}{2} \times base \times height$

Which means :

The area of this triangle :

$= \tt \frac{1}{2} \times 16 \times 4$

$=\tt \frac{1}{2} \times 64$

$= \tt \frac{64}{2}$

$\color{plum} =\tt\bold{ 32 \: {cm}^{2} }$

▪︎Therefore, the area of this triangle = 32 sq.cm

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2 years ago