# Focus On Life Science: California Grade 7

## Chapter 5: The Process of Evolution

### Math Practice

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 1. Find the length of the missing side for the triangle with b = 200 and c = 400. Need a Hint? A) 346.4 B) 600 C) 200 D) 1200 2. A ramp was constructed to load a truck. If the ramp is 9 feet long and the horizontal distance from the bottom of the ramp to the truck is 7 feet, what is the vertical height of the ramp? Need a Hint? A) 5.66 ft B) 12.5 ft C) 32 ft D) 16 ft 3. Jackson is 54 miles from Lazy R Resort. Ontario is 31 miles south of Jackson. A land developer proposes building a shortcut road to directly connect Ontario and Lazy R. Find the length of this new road. Need a Hint? A) 62 mi B) 6 mi C) 3877 mi D) 85 mi 4. A television screen measures approximately 15.5 in. high and 19.5 in. wide. A television is advertised by giving the approximate length of the diagonal of its screen. How should this television be advertised? Need a Hint? A) 52 in. B) 23 in. C) 519.84 in. D) 35 in. 5. A 6-ft ladder is placed against a wall with its base 2 ft from the wall. How high above the ground is the top of the ladder? Need a Hint? A) 5.7 ft B) 4 ft C) 32 ft D) 8 ft 6. A ladder is leaning against a wall. Its base is positioned 6 feet from the wall. If the top of the ladder rests against the wall 8 feet from the ground, how long is the ladder? Assume that the wall is at a right angle to the ground. Need a Hint? A) 10 ft B) 100 ft C) 16 ft D) 14 ft 7. Find c, to the nearest tenth, if a = 17 and b = 20. Need a Hint? A) 689 B) 26 C) 9 D) 37 8. As part of Lizzie’s training, she must climb a slanted rope net into a tree that is 45 feet high. To the nearest hundredth of a foot, how far away from the tree is the net anchored if the net is 100 feet long? Need a Hint? A) 89.30 ft B) 12.04 ft C) 12025 ft D) 145 ft 9. To train, Alex swims across his pool diagonally every day. If his pool is 4 meters wide, and it is 16 meters diagonally across, how long is his pool to the nearest meter? Need a Hint? A) 272 m B) 40 m C) 15.5 m D) 20 m 10. On Jena’s last hang gliding flight she jumped off a cliff and traveled in a diagonal line for 500 feet before landing 450 feet from the base of the cliff. How high was the cliff to the nearest ten feet? Need a Hint? A) 950 ft B) 4530 ft C) 452500 ft D) 218 ft