What's one sixth and five sixths

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• 1. 5. As shown in the figure, there is an isosceles triangle in an equilateral triangle, and
• 2. As shown in the figure, there is an isosceles triangle in an equilateral triangle, and angle one equals angle two, and angle three equals angle four. Can you find the degree of angle five?  
• 3. Solve the problem. (1) the circumference of a triangle is 68 cm, the length of side a is 30 cm, and the length of side B is 19 cm. How many cm is the length of side C? What triangle is this? (2) As shown in the figure, there is an isosceles triangle in an equilateral triangle, and ∠ 1 = 2, ∠ 3 = 4. Can you find the degree of ∠ 5?
• 4. In the following figure, there is an isosceles triangle in an equilateral triangle, and if angle 1 equals angle 2 and angle 3 equals angle 4, then angle 5 equals?  
• 5. As shown in the figure, in △ ABC, ∠ BAC = 4 ∠ ABC = 4 ∠ C, BD ⊥ AC, the vertical foot is D, find the degree of ∠ abd
• 6. What's 8 cents? What's 3 cents? What's 6 cents?
• 7. How many meters is six decimeters
• 8. How many centimeters is 40 mm? How many grams is 708 kg? How much is 4 yuan and 6 Fen?
• 9. How much is 4 yuan, 2 jiao and 8 Jiao
• 10. As shown in the figure, given that FC is parallel to AB, parallel to de, angle 3: angle D: angle B = 2:3:4, calculate the degree of angle 3, angle B and angle D
• 11. 5 yuan, 4 jiao, 3 fen = () yuan
• 12. How many meters is 5 meters 45 centimeters
• 13. 6 m 4 cm = () M 4 jiao = () yuan 85 m=（ 6m 4cm = () M 4 jiao = () yuan 85m = () cm 1t 300kg - 790kg = () t 9 M 8 cm - 3 m 20 cm = () M
• 14. How many centimeters is six meters
• 15. How many centimeters is six meters?
• 16. How many decimeters is five meters?
• 17. At present, the prices of five tea cups are 8.6, 5.4, 3, and three tea plates are 9.7 and 2, respectively How many kinds of tea sets at different prices can be made from one cup and one tray
• 18. For a triangle, angle 1 is three times of angle 2, angle 3 is five times of angle 2, angle 1, angle 2, angle 3, how many degrees are each angle?
• 19. In the quadrilateral ABCD, one angle equals two angles and three angles equals four angles In the quadrilateral ABCD, one angle equals two angles and three angles equals four angles
• 20. Angle A and angle B complement each other, and angle a is 30 degrees larger than half of angle B. calculate the degree of angle A and angle B