That box means 90degrees so you put them equal to each other 90 = 15X
90/15 = 6
So x = 6
Answer:
<h2>
503 cm²</h2>
Step-by-step explanation:
The surface area of the figure is sum of areas of two triangles and three ractangles:

Add them together since they're already in area unit
Answer:
This triangle is A, Scalene and E, Obtuse.
Step-by-step explanation:
- it is scalene because the lengths of all of its sides are different
- it is obtuse because it has an angle bigger than 90 degrees.
Hope this helps!