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3 years ago

The radius of a circle is 13 in. Find its area in terms of pi

Mathematics

2 answers:

Andru [333]3 years ago

5 0

Answer:

π169

Step-by-step explanation:

Area of a circle =π $r^{2}$

In this question r (radius) is 13

Plug in 13

π $13^{2}$

13x13=169

π169

grigory [225]3 years ago

4 0

Answer:

A≈530.93in²

Step-by-step explanation:

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3 years ago

An emu that measures 22 inches in height is 14 inches less than 2 times the height of a stuffed toy canary. What is the height o

OlgaM077 [116]

Answer: The height of the stuffed toy canary is 18 inches so Jesus is right.

Step-by-step explanation:

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+14 +14

36 = 2x Divide both sides by 2

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3 years ago

Use trig to find the legs of ABC if the base is AC and the height is BC (round to nearest tenth)

umka2103 [35]

Answer:

GIVEN :-

∠A = 15°
Length of AB (hypotenuse) = 60 ft

TO FIND :-

Length of BC
Length of AC
Area of ΔABC

FACTS TO KNOW BEFORE SOLVING :-

$\sin \theta = \frac{Side \: opposite \: to \: \theta}{Hypotenuse}$
$\cos \theta = \frac{Side \: adjacent \: to \: \theta}{Hypotenuse}$

SOLUTION :-

In ΔABC ,

$\sin 15 = \frac{BC}{60}$

$=> 0.2588... = \frac{BC}{60}$

$=> BC = (0.2588....) \times 60 = 15.5291.....$ ≈ 15.5 ft

$\cos 15 = \frac{AC}{60}$

$=> 0.9659..... = \frac{AC}{60}$

$=> AC = (0.9659.....) \times 60 = 57.9555.....$ ≈ 58 ft

Area of ΔABC = $\frac{1}{2} \times 58 \times 15.5 = 449.5 \:ft^2$

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2 years ago

The radius of a circle is 13 in. Find its area in terms of pi​

The radius of a circle is 13 in. Find its area in terms of pi