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1 year ago

In what situations (if any) is Heron’s formula useful for finding the area of a triangle.

Mathematics

1 answer:

Inga [223]1 year ago

5 0

Heron’s formula is useful when we know all three sides of triangle

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For questions 1 – 6, find the area of the circle to the nearest hundredth.<br> Any help appriciated!

Ganezh [65]

Step-by-step explanation:

The area of a circle is given by :

A = πr²

r is the radius of the circle

(4) Diameter = 22 cm

Since, radius = diameter/2

r = 11 cm

Now, area of the circle,

$A=\pi \times (11)^2\\\\A=380.13\ cm^2$

(5) Diameter = 30 cm

Since, radius = diameter/2

r = 15 cm

Now, area of the circle,

$A=\pi \times (15)^2\\\\A=706.85\ cm^2$

(6) Diameter = 4cm

Since, radius = diameter/2

r = 2 cm

Now, area of the circle,

$A=\pi \times (2)^2\\\\A=12.56\ cm^2$

So, the area of circles 4,5 and 6 are 380.13², 706.85² and 12.56² respectively.

4 0

2 years ago

1)35% of _____is 42.<br> 2)92% of_____ is 115.

dangina [55]

35% of 120 is 42. (42/32 then multiply that by 100)

92% of 125 is 115. (115/92 then multiply that by 100)

5 0

2 years ago

Read 2 more answers

Help meeeeeeeeeeeeeee!!!!!!

koban [17]

Answer:

2x+3=9

2x=6

x=3

3w-1=14

3w=15

w=5

7y+2=30

7y=28

y=4

5x+20=35

5x=15

x=3

6c-12=48

6c=60

c=10

8m-4=20

8m=24

m=3

7w+13=90

7w=77

w=11

12p-18=30

12p=48

p=4

9w-5=67

9w=72

w=8

10a+40=100

10a=60

a=6

9x-24=84

9x=108

x=12

7w+1=1

7w=0

w=0

your welcome

8 0

2 years ago

Read 2 more answers

Problem number eight

wariber [46]

Hello there! The answer is C. 7/9.

The question is asking you how to find the absolute value of -7/9. Absolute value is the value of the number, regardless if it is negative or positive. So, that makes C your answer.

I hope this was helpful in finding an answer to your question, have a great day! :)

7 0

2 years ago

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The point where a function crosses and touches the x intercept us called

ch4aika [34]

Zerossssssssssssssss

8 0

2 years ago