Answer:
Step-by-step explanation:
LJK just divides HJK in half so
LJK=126/2
LJK=63 degrees
For the perimeter you have to consider the EXTERNAL SHAPE ONLY:
a) the perimeter of half a circle WITHOUT ITS DIAMETER is:
π.R - 2R → 3.14x1.5 - 2x1.5 → 1.71 cm
b) the perimeter of the rectangle WITHOUT THE UPPER SIDE is:
2.5+3+2.5 = 8 cm
Hence the perimeter of the figure is 1.71 + 8 = 9.71 cm
2) Area of the figure:
Area of half circle is π.R²/2 →3.14 x (1.5)²/2 → Area half circle = 3.5325 cm²
Area of rectangle = 2.5 x 3 = 7.5 cm²
Total area = 3.5325 + 7.5 = 11.0325 ≈ 11 cm²
Answer:
B
Step-by-step explanation:
because it is the same size as the 9cm side
o
0 =1 because the o above is always equal to one and it makes it equal one always
Answer:
The Answer Is 1
Step-by-step explanation:
Because if you take -3+4 you get 1
