vrindakoirala vrindakoirala

01-01-2022
Mathematics

contestada

The perimeter of a circle=πr², where π=22/7. find the area of r=21cm

Respuesta :

silirobert15 silirobert15

01-01-2022

EXPLAINATION: [tex]\pi r^2=\frac{22}{7} .21^2=\frac{22}{7} .441=\frac{22.441}{7} =\frac{22.63.7}{7} =22.63=1386<cm^2>[/tex]

ANSWER: 1386 [tex]cm^2[/tex]

Ok done. Thank to me :>

Answer Link

Otras preguntas

Someone please help I don't know how to do this

The document that contains a long list of grievances (complaints) against the King of England is known as: The Constitution. The Articles of Confederation. The

Write the equation in standard form where A, B, and C are integers whose greatest common factor is 1. y = 7x + 15

what can you infer about the density of a substance if a block of that substance float in water

In mammals, mature red blood cells do not have mitochondria. Instead of using oxygen to help produce ATP, they use a form of anaerobic respiration known as lact

Criminal trials for charges of murder and other serious crimes would be conducted in the state court system unless the charges involved multiple states, non-cit

subtract the fractions and simplify the answer 78/9-53/5

What events are most likely to occur along a transform boundary? A. deep-sea trenches B. rugged mountain ranges C. earthquakes D. hot spots

the coefficients in a balanced chemical equation represent

Mark each statement if it correctly describes Confucian ideas. A. The secret to leading a good life is good personal character. B. To live well, a person must b