Question

Anna is building a rectangular

picture frame. If the sides of the frame
are 20 inches by 30 inches, what should
be the diagonal measure? Round to the
nearest tenth of an inch.

Answer 1

The diagonal should be approximately: 36.1

Explanation:

The diagonal is the hypotenuse for a right triangle with sides 20 inches and 30 inches.

Set up the equation:

c^2 = a^2 + b^2

c^2 = 20^2 + 30^2

c^2 = 400 + 900

c^2 = 1300

c = 36.055 rounded to 36.1 inches

Answer 2

Diagonal is 36.06 inches

Explanation:

Using Pathogoras' Theorem:

√(20²+30²) = 36.0555in

≈ 36.06in

(Correct me if i am wrong)