A rectangular park is 50m long and 35m broad.A 3.5m broad pavement runs along the boundary of the park .Find the cost of cementi
2 answers:
Solution:
<u>Step-1: Find the area of the park.</u>
- 50 x 35 = Area of park
- => 1750 m² = Area of park
<u>Step-2: Find the area of the inside rectangle.</u>
- (50 - 7)(35 - 7) = Area of inner park
- 43 x 28 = Area of inner park
- 1204 m² = Area of inner park
<u>Step-3: Subtract the area of the inner park from the area of the park.</u>
- 1750 - 1204 = Area of pavement
- => 546 m² = Area of pavement
<u>Step-4: Find the cost per square.</u>
- $400 = 8 m²
- => 1 m² = $50
<u>Step-5: Multiply 546 and 50 to find the cost.</u>
- 546 x 50 = Cost of pavement
- => $27300 = Cost of pavement
You might be interested in
Answer:
a) 45° cause tan = sin/cos and sin 45 and cos 45 both give square root 2/2
b) 120°
c) sin = -1/2 = -30° or 330° both are same
Use the trig circle which i have included in the answer to better understand trig angles
hope that answers your question
I want to let you know that each angle has sets of coordinates the left number is cos and right is sin. Ex) sin of 30 is 1/2 and cos of 30 is square root 3/2 In case you dont fully understand dont hesitate to comment.
good luck!!
