QueenElizabeth935 QueenElizabeth935

08-06-2022
Mathematics

contestada

A circle has a area of 49 pie cm2 work out its radius

Respuesta :

upandover upandover

08-06-2022

Area of a circle: pi x r^2

49 pi = pi x r^2

49 = r^2

r = +/- 7

---In this case, the radius is a measurement, so the answer must be positive.

r = 7

Hope this helps!

Answer Link

Otras preguntas

What must viruses do before they can reproduce?

Please answer this question

Which is a way the reader can tell Claudia is growing up? A. her calling Jamie a blabbermouth for telling Mrs. Frankweiler about the museum B. her correc

Which is a likely use for a base? a. as a vitamin in your food b. etching metals for printing c. making foods taste sour d. making soaps and detergents

If you draw one card from a standard deck, what is the probability that you draw a king or queen?

In the diagram, a building casts a 21-ft shadow and a flagpole casts a 6-ft shadow. If the flagpole is 15 ft tall, how high is the building?

Tristan swam around a lake 8 times. The distance around the lake was 0.25 miles. He swam at an average of 60 minutes per mile. Which explanation correctly tel

before mitosis begins what happens before the nucleus starts dividing

A man and his son were in an automobile accident. The man died on the way to the hospital, but the boy was rushed into surgery. The emergency room surgeon said

Which dynasty expanded the trade routes of the Silk Road?