Answer:
55 cm²
Step-by-step explanation:
side length of square = perimeter/4 = 40/4 = 10 cm.
area of square = side x side = 10 x 10 = 100 cm²
area of triangle #1 = 1/2bh = 1/2(3)(10) = 15
area of triangle #2 = 1/2bh = 1/2(6)(10) = 30
100 - 15 - 30 = 55 cm²
Answer:
4 times 1 plus 3 equals 7
Step-by-step explanation:
Answer:
9 hours of work
Step-by-step explanation:
306/17 = 18 per hour
so 162/18 = 9