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please help
maths geometry

Please Help Maths Geometry class=

Sagot :

reinhard10158

Step-by-step explanation:

since both shapes are totally symmetric, a few answers are obvious :

(1) F2 = F1 = 50°

(3) B1 = D1 = 20°

last but not least, D2 = B2.

using the fact that the sum of all angles in a triangle is always 180°.

and that the sum of all angles sind a single point on one side of a line is also always 180° :

in the triangle CDF the inner angle C is

C = 180 - 20 - 50 = 110°.

therefore, C1 = 180 - 110 = 70°

E1 = 90° (a major rule for the diagonals of a kite).

D2 = 180 - 90 - 70 = 20°

and so, B2 = 20°

(2) D2 = 20°

(4) B2 = D2 = 20°

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