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Shalnov [3]
3 years ago
8

A circular mirror is surrounded by a square metal frame. The radius mirror is 6x the side length of the medal frame is 18x. What

is the area of the medal frame
Mathematics
2 answers:
wolverine [178]3 years ago
4 0

Answer:

Step-by-step explanation:

Given:

Radius of circular mirror, r = 6x

Length of metal frame, l = 18x

Area of square, As = l^2

Area of square = 18x × 18x

= 324 x^2.

Area of circular mirror, Ac = pi × r^2

= π × (6x)^2

= 36π x^2.

The expression for the area of the frame is subtracting the mirror from the metal frame = As - Ac

= 324x^2 - 36πx^2

= 36x2 (9 - π).

Delicious77 [7]3 years ago
4 0

Answer:

area of medal frame= 36x^{2} (9-\pi ) sq/units

Step-by-step explanation:

area of medal frame=area of square metal frame -area of circular mirror  

Length of square= 18x

radius of circular mirror= 6x

let area of square metal frame = L * L= 18x * 18x = 324x^{2}

let area of circular mirror=\pi r^{2}=    \pi (6x)^{2} \\\pi 36x^{2}

area of medal frame= 324x^{2} -\pi 36x^{2}

Factorizing the common factor in both expression,

we will have;

area of medal frame= 36x^{2} (9-\pi ) sq/units

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Crazy boy [7]

The value of x is 34.64 feet

<h3>Right-angled triangle</h3>

Find the diagram attached

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  • length of the rope = x

Get the value of x using the SOH CAH TOA identity

sin 60 = \frac{x}{40}\\0.8660 = \frac{x}{40}\\x = 40(0.8660)\\x = 34.64feet

Hence the value of x is 34.64 feet

Learn more on SOH CAH TOA here: brainly.com/question/20734777

3 0
2 years ago
What is the measure of ∠D?
LenaWriter [7]

Answer:

63

Step-by-step explanation:

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3 0
3 years ago
The equation of the circle is (x+8)^2+(y+9)^2=169. Which of the following are the center and the radius of the circle
ipn [44]
The equation for a circle is (x - h)^2 + (y - k)^2 = r^2
where (h, k) is the center and r is the radius
(x + 8)^2 + (y + 9)^2 = 169
Since the equation is -h and -k, I will rewrite in terms of -h and -k.
(x - -8)^2 + (y - -9)^2 = 13^2
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Let me know if you need me to explain further.
3 0
3 years ago
Maths help PLZZ!!!
Slav-nsk [51]

Triangle ABC is an isosceles triangle.

Solution:

Given data:

∠ABC = 70° and ∠ACD = 55°

<em>If two parallel lines are cut by a transversal, then alternate interior angles are congruent.</em>

m∠BAC = m∠ACD

m∠BAC = 55°

<em>Sum of the angles in a straight line add up to 180°.</em>

m∠ACD + m∠ACB + m∠ABC = 180°

55° + m∠ACB + 70° = 180°

m∠ACB + 125° = 180°

Subtract 125° from both sides, we get

m∠ACB = 55°

In triangle ABC,

∠BAC = 55° and ∠ACB = 55°

∠BAC = ∠ACB

Two angles in the triangle are equal.

Therefor triangle ABC is an isosceles triangle.

6 0
3 years ago
The scale on a map says that 2 inches = 150 miles. If two cities are actually 325 miles apart, how many inches apart will they b
vodomira [7]
150/2= 75(that is the diff)
75*325= 24375 (answer)
4 0
3 years ago
Read 2 more answers
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