2 years ago

What is the circumference of this circle, in centimeters? Use 22/7 for Pi.

Mathematics

2 answers:

yan [13]2 years ago

8 0

It’s should be B if not i’m sorry
good luck

gtnhenbr [62]2 years ago

3 0

Answer: 66cm

Step-by-step explanation:

Diameter (d) = 21 cm

c= πd = 22/7 x 21 = 22 x 3 = 66cm

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2 years ago

An obtuse triangle has two angles 45 n 18 ,and a third unknown angle theta what's the value of the unknown angle

zlopas [31]

Answer:

An obtuse triangle has two angles 45 and 18. The value of the unknown angle is $117^{\circ}$

Solution:

Given that two angles of an obtuse triangle is 45 and 18.

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We are asked to find the value of third unknown angle theta

According to angle sum property of triangle, sum of three angles of triangle is $180^{\circ}$

This means in our case sum of 45, 18 and θ should be $180^{\circ}$

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3 years ago

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ki77a [65]

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Step-by-step explanation:

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1 year ago

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