Answer:
60π
Step-by-step explanation:
If the circle has radius of 30 units, substitute r=30 into the formula C = 2πr.
C = 2π(30)
C = 60π
Make a ratio, then cross multiply.
4/30=x/48
30x=4x48
30x=192
x=6.4
100°+(4y+25)+(3y+20)=180°
100+4y+25+3y+20=180
7y+145=180
7y=35
y=5
100°; 45°; 35°
Answer:
use the firmula
area of triangle =1/2b×h
Step-by-step explanation:
let the ratio be 6x and 5x
- 6x+5x=135
- now solve this
- this may help you