All categories

3 years ago

Look at this triangle. B 8 cm A 22 cm Work out length AB.

Mathematics

1 answer:

brilliants [131]3 years ago

7 0

Answer:

23.41cm

Step-by-step explanation:

Using Pythagoras theorem

a²+b² = c²

Where a and b are sides of the triangle and c is the Hypotenuse.

If we substitute the values

B= 8 cm

A= 22 cm

22²+8² = c²

484 + 64= c²

√548 = c

C= 23.41

Hence, length AB is 23.41cm

CHECK THE ATTACHMENT

You might be interested in

What would be the volume of (a) air (b) plastic in a ball with 25cm diameter made from plastic 2mm thick?

morpeh [17]

Answer:

Part a) The volume of the air is $V=7,794.78\ cm^{3}$

Part b) The volume of the plastic is $V=386.45\ cm^{3}$

Step-by-step explanation:

we know that

The volume of the sphere is equal to

$V=\frac{4}{3}\pi r^{3}$

step 1

Find the volume of the complete ball (air +plastic)

we have

$r=25/2=12.5\ cm$ ------> the radius is half the diameter

substitute

$V=\frac{4}{3}\pi (12.5)^{3}$

$V=8,181.23\ cm^{3}$

step 2

Find the volume of the air

we have that

The plastic is 2 mm thick

Convert to cm

2 mm=2/10=0.2 cm

The radius of the interior of the ball is

$r=12.5-0.2=12.3\ cm$

substitute

$V=\frac{4}{3}\pi (12.3)^{3}$

$V=7,794.78\ cm^{3}$ -----> this is the volume of the air (interior of the ball)

step 3

Find the volume of the plastic

we know that

The volume of the plastic is equal to the volume of the complete ball minus the volume of the air

$8,181.23\ cm^{3}-7,794.78\ cm^{3}=386.45\ cm^{3}$

3 0

3 years ago

Read 2 more answers

PLEASE HELP (NO LINKSS THEY WILL GET REPORTED)

pogonyaev

Answer:

NO it it is wrong because when you when you are finding the volume of something you multiply length switch and also Heights at the same time

Step-by-step explanation:

5 0

3 years ago

Jelly beans cost $2.00 for 4 packages. There were 25 students. How much money will be needed so that each

il63 [147K]

Answer:

14$

Step-by-step explanation:

2 Packages Will Be Left Over

6 0

3 years ago

Read 2 more answers

1500 people to part in a walkathon. 450 of them were school children. The rest are adults. What percentage of the participants w

Bas_tet [7]

70% of the people were adults

First you subtract 1500-450 = 1050
Then you divide 1050/1500 = .7

5 0

3 years ago

Read 2 more answers

I need help with this problem x²＋4x﹣30=﹣3x

a_sh-v [17]

Answer:

$x^2 + 4x -30 = -3x\\x^2 + 4x +3x -30 = 0\\x^2 + 7x -30 = 0\\x^2 +10x -3x -30 = 0\\x(x+10) -3(x+10)\\(x-3)(x+10) = 0\\x = 3, -10$

7 0

3 years ago

Read 2 more answers