The sides of a quadrilateral are in the ratio 1:2:3:6. The perimeter is 138 cm. Find the lengths of the sides.

11.5cm, 23cm, 34.5 cm, 69cm

Step-by-step explanation:

1+2+3+6=12

138/12=11.5

First side=11.5cm

Second side=11.5x2=23cm

Third side=11.5x3=34.5cm

Fourth side=11.5x6=69cm

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm

$25 becasue a 10 increase would make it from 80 to 50