9514 1404 393
Answer:
288 km²
Step-by-step explanation:
The surface area is the sum of the area of the square base and the area of the four triangular faces.
SA = (10 km)² + 4(1/2)(10 km)(9.4 km) = 288 km²
____
The area formulas for a square and a triangle are ...
A = s² . . . . area of a square of edge length s
A = 1/2bh . . . . area of a triangle with base b and height h
Answer:
EDA by angle degree.
Step-by-step explanation:
Don't know if it's right or not.
Answer:
Step-by-step explanation:
<u>The angles are corresponding angles and they are equal by definition</u>
- 120 = x + 123
- x = 120 - 123
- x = 3
