The johnsons framed a family picture to hang on the wall. the perimeter of the frame is 72 inches. use the formula p = 2ℓ + 2w to find the length of the frame if the width is 19 inches. 17 in. 19 in. 15 in. 20 ini think it's 17 inches.

P = 2l+2w

substitute P and w

72 = 2l + 2(19)

72 = 2l + 38

subtract 38 from each side

72-38 = 2l + 38-38

34 = 2l

divide by 2

34/2 = 2l/2

17 = l

L = 17 inches

answer: give more info

step-by-step explanation:

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.