Answer:

Step-by-step explanation:
The formula of an area of a kite:

d₁, d₂ - diagonals
We have A = 120 cm² and d₁ = 16 cm. Substitute:

<em>divide both sides by 8</em>

Answer:

Step-by-step explanation:
Pythagorean theorem:

Alternative:

Alternative (derived from the Pythagorean theorem):
All 45-45-90 triangles have side lengths
, where
is the hypotenuse. Since this triangle's hypotenuse is
, its sides are
.
Answer:
13+5+12+10=40
Step-by-step explanation:
The answer would be 40 cm.