Answer:
30.6 cm²
Step-by-step explanation:
Dividing the parallelogram into 2 geometry shapes:
Square
2 Right angle triangles
Area of a square, As = length^2
= 4.5^2
= 20.25 cm^2
Area of a right angle triangle, At = 1/2 × base × height
= 1/2 × 2.3 × 4.5
= 5.175 cm^2
Sinve there are 2 right angle triangle,
At = 2 × 5.175
= 10.35 cm^2
Total area of the parallelogram, Ap = area of the square + area of the 2 right angle triangle
= 10.35 + 20.25
= 30.6 cm^2
Given parameters:
Percentage gain = 300%
Selling cost last year = $2420
Unknown:
Selling cost this year = ?
Solution:
To solve this problem;
Profit percent =
300 =
3 =
S- 2420 = 7260
S = $9680
To make a 300% gain, Jefferson Middle school needs a $9680 from fundraiser sales this year.
Answer:
Step-by-step explanation:
Area of the figure = Area of rectangle with dimensions 16 in and 4 in + Area of two right triangles with base (7 - 4 = 3) 3 in and height 8 in