10-14 is -4. Think of it as 14-10=4 but you turn the 4 into a negative number. Hope that answers
Answer:
C)25.5
Step-by-step explanation:
The area of the rectangle is
A = l*w = 6*3.5 =21 m^2
The area of the triangle is
The height is the total height minus the height of the rectangle
A = 1/2 b*h = 1/2* 6 * (5-3.5)
1/2 (6) *1.5 = 4.5
Then add the ares together
A total = 21+4.5 = 25.5 m^2
It should be 580. hope that makes sense:)
Answer:
Total Composite Area: 5/2π in²
Total Composite Perimeter: 3π + 2 in
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Geometry</u>
- Diameter: d = 2r
- Area of a Circle: A = πr²
- Circumference Formula: C = 2πr
Step-by-step explanation:
<u>Step 1: Define</u>
Radius of Circle ABC = 2 in
Radius of Circle AD = 1 in
<u>Step 2: Find Area</u>
Since the formulas are for use for <em>full </em>circles and we only have semicircles, we need to half the formulas.
We add the 2 composite figures to find the <em>total </em>area.
- [Circle AD] Substitute [AC]: A = 1/2π(1 in)²
- [Circle ABC] Substitute [AC]: A = 1/2π(2 in)²
- [Total] Combine: A = 1/2π(2 in)² + 1/2π(1 in)²
- Exponents: A = 1/2π(4 in²) + 1/2π(1 in²)
- Multiply: A = 2π in² + 1/2π in²
- Add: A = 5/2π in²
<u>Step 3: Find Perimeter</u>
Since the formulas are for use for <em>full </em>circles and we only have semicircles, we need to half the formulas.
We add the 2 composite figures to find the <em>total </em>perimeter. Don't forget circumference is only the <em>curve</em> of the circle.
- [Circle AD] Substitute [CF]: C = 1/2(2π · 1 in)
- [Circle ABC] Substitute [CF]: C = 1/2(2π · 2 in)
- [Total] Combine: C = 1/2(2π · 2in) + 1/2(2π · 1 in) + 2 in
- Multiply: C = 1/2(4π in) + 1/2(2π in) + 2 in
- Multiply: C = 2π in + π in + 2 in
- Add: C = 3π + 2 in
Answer:
156 ft²
Step-by-step explanation:
Given :
The rectangular sides are 12 feet by 3 feet, 12 feet by 5 feet, and 12 feet by 4 feet.
The 2 triangular sides have a base of 3 feet and height of 4 feet
We sum the area of each side:
Area of triangular side = 1/2 * base * height
Since there are 2 triangular sides :
Total area of triangular side = 2(1/2 * base * height)
Triangular side = 2 * 1/2 * 3 * 4 = 12 feet²
Area of rectangle sides = lengtb * width
Area 1 = 12 * 3 = 36 ft²
Area 2 = 12 * 5 = 60 ft²
Area 3 = 12 * 4 = 48 ft²
Total = 12 + 36 + 60 + 48 = 156 ft²
