In triangle ABC, cos A = 7/25. Which other expression has a value of 7/25?
A) sin B
B) cos A
C) cos B
D) tan A
E) tan B
The parking lot of a store has the shape shown. All angles are right angles. What is the area of the parking lot?
A) 41 yd^2
B) 65 yd^2
C) 80 yd^2
D) 90 yd^2
E) 105 yd^2
What is the perimeter of the triangle?
A) approximately 22.5 units
B) approximately 18.1 units
C) approximately 15.7 units
D) approximately 12.2 units
E) approximately 6 units
1) sin B
2) We have two rectagles, here....one is a 5 x 4 rectangle and the other is a 15 x 3 rectangle
So.....thetotal area is ( 5 x 4) + (15 x 3) = (20) + ( 45) = 65 yards^2
3) We have a right triangle with legs of 3 and 6
The hypotenuse = sqrt (3^2 + 6^2) = sqrt ( 9 + 36) = sqrt (45) ≈ 6.7 units
So the perimeter = 3 + 6 + 6.7 ≈ 15.7 units