In rectangular ABCD, diagonal lines AC and BD intersect at point O, AE bisects ∠ bad, AE intersects BC at point E. if ∠ CAE = 15 °, what is the degree of ∠ BOE?

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• 1. As shown in the figure, in rectangular ABCD, AC and BD intersect at point O, AE bisects ∠ bad, BC intersects at E. if ∠ EAO = 15 °, then the degree of ∠ BOE is______ Degree
• 2. In rectangle ABCD, AC BD intersects with 0 AE bisector angle bad if ∠ EAO equals 15 degrees and BOE equals 15 degrees=
• 3. As shown in the figure, in rectangular ABCD, AC and BD intersect at point O, AE bisects ∠ bad, BC intersects at E. if ∠ EAO = 15 °, then the degree of ∠ BOE is______ Degree
• 4. As shown in the figure, if the diagonals of rectangle ABCD intersect at point O, AE bisector angle bad intersects BC at e, and angle CAE = 15 degrees, then the angle BOE=
• 5. As shown in the figure, in the rectangle ABCD, the diagonal AC and BD intersect at the point O. is there a circle so that all four points of ABCD are on the circle? If there is one Please point out the center and radius of this circle. If it doesn't exist, explain why
• 6. Known: as shown in the figure, in rectangular ABCD, the diagonal intersects at point O, ∠ AOB = 60 °, AE bisects ∠ bad, AE intersects BC at E. calculate the degree of ∠ BOE
• 7. Known: as shown in the figure, in rectangular ABCD, the diagonal intersects at point O, ∠ AOB = 60 °, AE bisects ∠ bad, AE intersects BC at E. calculate the degree of ∠ BOE
• 8. Known: as shown in the figure, in the isosceles trapezoid ABCD, ab = CD, ad ‖ BC, e is a point outside the trapezoid, and EA = ed, prove: EB = EC
• 9. 1. Given that e is the midpoint of the edge BC of the parallelogram ABCD and EA = ed, it is proved that the four deformed ABCD is a rectangle 2. The bisector of an inner corner of a rectangle divides an edge of the rectangle into 6cm. What is the length of the bisector of the inner corner of the rectangle when it is 8cm? 3. In rectangular ABCD, ab = 2BC, e is a point on CD, and AE = AB, what is the degree of ∠ EBC? 4. AC is the diagonal of square ABCD, AE bisects ∠ BAC, proving: ab + be + AC 5. In rectangular ABCD, M is the midpoint of AD, CE ⊥ BM, the perpendicular foot is e, ab = 4cm, BC = 4 レ 2cm, find the length of Ce (Note: 4 レ 2 →→→ 4 times root 2) Wealth, No picture. Thank you
• 10. As shown in the figure, in the parallelogram ABCD, AC and BD intersect at point O, e is the outer point of the parallelogram ABCD, EA ⊥ EC, ed ⊥ be
• 11. In rectangular ABCD, AC and BD intersect at point O, AE bisects the angle bad, and if the angle EAO = 15 °, calculate the degree of the angle BOE I can't give you a picture
• 12. As shown in the figure: given rectangular ABCD, AC and BD intersect at O, AE ‖ BD, de ‖ AC. verification: OE ⊥ ad
• 13. It is known that: as shown in the figure, the diagonal of rectangle ABCD intersects at O, AE bisects ∠ bad intersects BC at e, ∠ CAE = 15 °, then ∠ BOE=______ °．
• 14. As shown in the figure, in rectangular ABCD, the bisector of ∠ bad intersects BC at point E, and point O is the intersection of diagonals, and ∠ CAE = 15 °, then ∠ BOE=______ Degree
• 15. As shown in the figure, in rectangular ABCD, the diagonal lines AC and BD intersect at point O, AE bisects ∠ bad, BC intersects at point E. if ∠ CAE = 15 °, calculate the degree of ∠ BOE
• 16. As shown in the figure, in the square ABCD, the diagonal AC and BD intersect at point E, AF bisects ∠ BAC, intersects BD at point F, and proves: EF + 12ac = ab
• 17. As shown in the figure, in the right angle trapezoid ABCD, ad ‖ BC, ∠ C = 90 °, ad = 5, BC = 9, take a as the center, rotate waist AB clockwise 90 ° to AE, connect De, then the area of △ ade is equal to () A. 10B. 11C. 12D. 13
• 18. As shown in the figure, in the isosceles trapezoid ABCD, ad ∥ BC, point E is the midpoint of BC side
• 19. As shown in the figure, in isosceles trapezoid ABCD, ad ‖ BC. AB = DC, e is the midpoint of BC, connecting AE and De, proving: AE = De
• 20. As shown in the figure, in the isosceles trapezoid ABCD, e is the midpoint of the bottom BC, connecting AE and de