Answer:
176 cm²
Step-by-step explanation:
you have a square and 4 equal triangles, you find the area of all, and you sum.
square area = l²
8² = 64 cm²
triangle area = b*h/2
8 * 7 : 2 = 28 cm²
now we sum 1 square's area and 4 triangles' area.
64 + 28 + 28 + 28 + 28 = 176 cm²
or
64 + (28 * 4) = 176 cm²
