manastasie637 manastasie637
  • 21-05-2020
  • Mathematics
contestada

A circle has an area of 64 cm²
Work out the radius of the circle.
(2marks)

Respuesta :

jetsteamunk
jetsteamunk jetsteamunk
  • 21-05-2020

Answer: 4.51 cm

Step-by-step explanation:o Area of circle=pi×r^2

Given area=64 cm sq.

so, 64=3.14×r^2

64/3.14= r^2

20.38= r^2

√20.38=r

4.51=r

Therefore, radius= 4.51 cm

Please rate 5 stars and vote as brainliest:)

(^o^)(^o^)(^o^)(^o^)(^o^)(^o^)(^o^)(^o^)(^o^)(^o^)

Answer Link

Otras preguntas

If f(x)=-2x+8, then find f(x+5) What would the new equation be?
how yo draw a monkey
Kate Chopin vividly describes how quickly and powerfully the Aubignys fall in love through the use of which figurative device? "It was no wonder, when she stood
Which of these shows how to write the sentence in the active voice? The dog was trained by professionals. A. The people are professionals, and the dog was trai
what is the adjective in the sentence the milkweed grew along the country roads?
1. What mental/emotional problems might be helped with biofeedback? Biofeedback can help the following stress-related symptoms: · Tension headaches · Migraine h
Find the slope of the line 4y-8x=32
· The Inquisition · The Jesuits · The Council of Trent All of these were MAINLY designed for what purpose? A) end religious wars in Europe B) retake the H
Name three different allotropes of carbon and describe their physical properties
Which type of sequence is represented by the table below? x 1 2 3 4 y 5 3 1.8 1.08 The table represents an arithmetic sequ