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NARA [144]
3 years ago
7

What is the circumference of a circle with a diameter of 2.9 cm?​

Mathematics
2 answers:
steposvetlana [31]3 years ago
8 0

Answer:

C≈9.11

Step-by-step explanation:

slega [8]3 years ago
7 0

Answer:

The answer is 9.111

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Which equation can be used to find the volume of the cylinder radius 4 inches height 16 inches
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v = pi(4)^2(16)

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
The ratio of areas of two triangles with common base is 4:5. The height of smaller triangle is 6cm. Find height of greater trian
8_murik_8 [283]

Answer:

Height of the greater triangle is 7.5 cm (Approximately).

Step-by-step explanation:

Given that

The ratio of two triangles with common base = 4:5

Let they be 4x cm² and 5x cm²

The area of the bigger triangle = 5x cm²

The area of the smaller triangle = 4x cm²

also,

Given that

The base of two triangles are same

Let the base of the two triangles be b cm

Height of the smaller triangle = 6 cm

Now,

Area of the triangle = (1/2)×base×height sq.units

⇛Area of the smaller triangle

⇛(1/2)×b×6 = 4

⇛6b/2 = 4

⇛3×b = 4

⇛b= 4/3 cm

.°. b = 4/3 cm

Now,

The length of the base = 4/3 cm

Area of the greater triangle = 5 cm²

⇛(1/2)×(4/3)×h = 5

⇛(4/6)×h = 5

⇛(2/3)×h = 5

⇛h = 5/(2/3)

= 5×3/2

= 15/2

⇛h = 7.5 cm (Approximately)

<u>Answer</u><u>:</u> Therefore, Height of the greater triangle is 7.5 cm.

Please let me know if you have any other questions.

6 0
2 years ago
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