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Galindonbernardojrgo
Answered

If the circumference of a circle
increased by 30%, how much is its area
increase?

Sagot :

Scarlet887go

Answer:

Area =0.69PIr²/ Pi r² 100 =69 %

Step-by-step explanation:

original circumference 2 Pi r ; radius increased to 1.3 r new circumference 1.3*2 PI r increase in circumference 2 Pi r[1.3–1] =0.3 2 PI r

percentage increase in circumference= 0.3 2 PI r/2 Pi r *100 =30%

Circle Area originally =Pi r² ; New area of circle Pi [1.3r]² =1.69 PI r²

increase in area =PIr² [1.69–1] =0.69PIr²

percentage increase in Area =0.69PIr² / Pi r² *100 =69 %

Pa brainliest po tysm

Samthinghappenedgo

Answer:

60.9 or 61%

Step-by-step explanation:

[tex]2a + a \times a \div 100 \\ 2(30) + 30 \times 30 \div 100 \\ = 60 + 90 \div 100 \\ = 60.9[/tex]

hope this helps and God bless!

pabrainliest po

- Sam <3

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