3 years ago

Should i give away free point

Mathematics

2 answers:

guajiro [1.7K]3 years ago

8 0

Answer:

Yes

Step-by-step explanation:

gayaneshka [121]3 years ago

5 0

Answer:

Yes

You should give out free points because It really helps the community. fsjnfskjfnjfndkvnf Poggers

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What is the circumference of a circle that has a area of 452.16

Volgvan

$C = 2\sqrt{ \pi A}

C = 2\sqrt{ \pi 452.16}$
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The area of a trapezium is 31.5 cm². If the parallel sides are of length 7.5 cm and 5.3 cm, calculate the perpendicular distance

spin [16.1K]

Answer:

<h3>The answer is 4.9cm</h3>

Step-by-step explanation:

To find the perpendicular distance between them that's the height we use the formula

$Area \: \: of \: \: a \: \: trapezium = \frac{1}{2} (a + b) \times h$

where

a and b are the parallel sides of the trapezium

h is the perpendicular distance

From the question

Area = 31.5cm²

a = 7.5 cm

b = 5.3 cm

Substituting the values into the above formula we have

$31 .5 = \frac{1}{2} (7.5 + 5.3) \times h$

$31.5 = \frac{1}{2} \times 12.8h$

$31.5 = 6.4h$

Divide both sides by 6.4

$h = \frac{31.5}{6.4}$

h = 4.921875

We have the final answer

Hope this helps you

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