Question

!50 POINTS! (3 SIMPLE GEOMETRY QUESTIONS)

QUESTIONS BELOW
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Answer 1

Hi,

i shell only answer the 2 last questions

Explanation:

Q10: answer D

the method to solve is on the picture:

1) draw the center of the rectangle (O)

2) put a point A=(-4,5)

3) search the point A' (image of the point A by central symetry of O

4) draw the circle of center O passing through A (diagonals of a rectangle are equal)

5) draw the perpendicular of [AA'] passing through O (bissector perpendicular ? médiatrice in French)

intersection with the circle gives others vertex.

We may also use analytic geometry .

Q11: 12° since

2x+4+62=90 => 2x=90-62-4 => x=12