For the triangle:
Measure base x height divided by 2
= 4 x 3 / 2
= 12 / 2
= 6 km squared
Semi Circle:
area of a circle = pi r squared
= 3.14 x 2 km squared (half of the 4km diameter)
= 3.14 x 4 (4 is 2 squared)
= 12.56 divided by 2 (since it’s half of a circle)
= 6.28 km squared
Total:
6 + 6.28 = 12.28 km squared
The mean:
111+132+186
429/3=143
Subtract mean:
111-143= -32²= 1,024
132-143=-11²= 121
186-143= 43²= 1,849
Now find the mean again:
1,024+121+1,849
2,994/3= 998
Now square root:
√998≈31.591138
Answer:
Length: meter
Mass: Kilogram
Volume of a solid: Cubic meter
Volume of a liquid: Liters
Temperature: Degree Celsius
Time: second
The formula for calculating density:
Answer:
all rectangles are quadrilaterals
Step-by-step explanation:
this is because they have all right angles it doesn't matter the size or measurements, and this goes for squares as well since squares are a type of rectangle and we all know that squares have all equal side lengths and they all have right angles
