Please help will mark 1st right answer as brainiest
The angle measures of the three angles of a triangle are in the ratio $1:3:6$. What is the number of degrees in the measure of the largest angle?

The number of degree in the measure of the largest angle is 108

Step-by-step explanation:

The sum of the measures of the interior angles of a triangle is 180°

∵ The angle measures of the three angles of a triangle are in

   the ratio 1 : 3 : 6

∴ The sum of the ratio = 1 + 3 + 6 = 10

∵ The sum of the measures of the interior angles of a triangle = 180°

- Let us use the ratio method

→  ∠1  :  ∠2  :  ∠3  :  sum

→  1     :  3    :  6     :  10

→  x     :  y    :  z     :  180°

By using cross multiplication

∵ 10 × x = 1 × 180

∴ 10 x = 180

- Divide both sides by 10

∴ x = 18

∴ m∠1 = 18°

∵ 10 × y = 3 × 180

∴ 10 y = 540

- Divide both sides by 10

∴ y = 54

∴ m∠2 = 54°

∵ 10 × z = 6 × 180

∴ 10 z = 1080

- Divide both sides by 10

∴ z = 108

∴ m∠3 = 108°

The number of degree in the measure of the largest angle is 108

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

12.5 feet

step-by-step explanation: