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Oxana [17]
2 years ago
15

In the adjoining figure, ABCD is a square of side 28 cm find the area of shaded region​

Mathematics
1 answer:
vodka [1.7K]2 years ago
7 0

Step-by-step explanation:

Area of square

A = s²

A = 28²

A = 28 × 28

A = 784 cm²

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The points A(0, 0), B(0, 4a - 5) and C(2a + 1, 2a + 6) form a triangle. If angle ABC = 90, what is the area of triangle ABC?(A)
ZanzabumX [31]

Answer:

A:102

Step-by-step explanation:

We are given that the points A(0,0),B(0,4a-5) and C(2a-+1,2a+6) form a triangle.

If angle ABC=90^{\circ}

We have to find the area of triangle ABC

If angle ABC= 90 degree

From given below figure

4a-5=2a+6

4a-2a=6+5

2a=11

a=\frac{11}{2}=5.5

Substitute the values then we get

B(0,17) and C (12,17)

Distance formula

\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

AB=\sqrt{(0-0)^2+(17-0)^2}=17 units

BC=\sqrt{(12-0)^2+(17-17)^2}

BC=\sqrt{144+0}=\sqrt{144}=12 units

Area of triangle =\frac{1}{2}\times b\times h

Substitute the values

Then we get

Area of triangle ABC=\frac{1}{2}\times 17\times 12

Area of triangle ABC=102 square units

Answer: A: 102

8 0
3 years ago
-3(4n+2)=-4n+-2(4n-6)​
Zolol [24]

Answer:

6

Step-by-step explanation:

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-12n-6=-12n+12

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6

7 0
2 years ago
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Find the explicit formula for the given sequence 2, 4, 8, 16...
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Answer:

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Step-by-step explanation:

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5 0
3 years ago
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Anoki bought 360 millimeters of fabric. How many centimeters of fabric does Anoki have? It’s either 360, 36.0,3.60, or 0.360
Stels [109]
Hey!


First, we need to know how many millimeters are in a centimeter.

<em>10 mm = 1 cm</em>

Okay, now we can write an equation.

<em>360 mm ÷ 10</em>

To solve this equation, we simply divide.

<em>360 mm ÷ 10 = 36 cm</em>

<em>So, if </em><span><em>Anoki bought 360 millimeters of fabric, that means he has </em> 36.0 centimeters  <em>of fabric.</em>

Hope this helps!


- Lindsey Frazier ♥</span>
8 0
2 years ago
What is the exact volume of a sphere that has a radius of 9.6 m?<br><br> <img src="https://tex.z-dn.net/?f=%20%5Cpi%20" id="TexF
Evgesh-ka [11]
<span>We have to find the volume of the sphere that has a radius of 9.6 m. The formula for the volume of the sphere is: V = 4/3 r^3 Pi. ( r = 9.6 m, Pi = 3.14 ) V = 4/3 * 9.6^3 * 3.14; V = 4/3 * 884.736 * 3.14; V = 3,705.97349m^3 ( when the number Pi is more accurate ). Answer: The exact volume of the sphere is 3,704.97349 m^3.</span>
4 0
3 years ago
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