You take out an installment loan to purchase a sailplane costing $34,100. You make a down payment of $8,600 and finance the balance by making monthly payments of $1,176.72 for 24 months. Use the APR formula to find the APR.

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.