3 years ago

Answer this if you're cool

Mathematics

2 answers:

GalinKa [24]3 years ago

7 0

I’m doing this to in 8th grade I don’t understand it neither

astra-53 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

∠B=65°

∠A+∠B+∠C+∠D=360

90+65+∠C+65=360

∠C=360-220=140°

AB=AD (given)

BC=BD (given)

so ∠B=∠D

also sum of four angles of a quadrilateral=360°

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