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Wittaler [7]
3 years ago
5

Can someone give me formulas to calculate area ​

Mathematics
1 answer:
NeTakaya3 years ago
3 0

Answer:

Step-by-step explanation:

Triangle

Area = ½ × b × h

b = base

h = vertical height

Square

Area = a2

a = length of side

Rectangle

Area = w × h

w = width

h = height

Parallelogram

Area = b × h

b = base

h = vertical height

Trapezoid (US)

Trapezium (UK)

Area = ½(a+b) × h

h = vertical height

Circle

Area = π × r2

Circumference = 2 × π × r

r = radius

Ellipse

Area = πab

Sector

Area = ½ × r2 × θ

r = radius

θ = angle in radians

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Three ballet dancers are positioned on stage. Elizabeth is straight behind Hannah and directly left of Manuel. If Hannah and Eli
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Answer: Elizabeth and Manuel have a distance of 4 meters between them.

Step-by-step explanation: Please refer to the picture attached.

From the information given, Elizabeth is directly behind Hannah and directly left of Manuel. That means we have three points which are HEM, that is, we now have triangle HEM. The longest side (hypotenuse) which is the distance between Hannah and Manuel is given as 5 meters while the other side the distance between Hannah and Elizabeth is given as 3 meters.

We shall apply the pythagoras theorem in solving for the unknown side, EM.

The Pythagoras theorem states thus;

AC² = AB² + BC²

Where AC is the hypotenuse, and AB and BC are the other two sides.

Substituting for the known values, we now have;

5² = 3² + EM²

25 = 9 + EM²

Subtract 9 from both sides of the equation

16 = EM²

Add the square root sign to both sides of the equation

√16 = √EM²

4 = EM

Therefore the distance between Elizabeth and Manuel is 4 meters

8 0
3 years ago
Create a word problem that involves speed
lana66690 [7]

A hockey puck is sliding on frictionless ice on an infinite hockey rink.
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What is the puck's speed in miles per hour ?

        (36 km/hr) x (0.6214 mi/km)  =  <em>22.37 mi/hr</em>


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Step-by-step explanation:

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Step-by-step explanation:

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