Answer:
total 20 squares in matrix of size 4×3
Step-by-step explanation:
in square of size 1×1
six squares of size 2×2
2 squares of size 3×3
cuz they are chairs
b = 4 inches, c = ~5.66 inches
The triangle is isosceles so b is equal to the adjacent side. Use the Pythagorean theorem to find c.
