Chọn câu trả lời đúng Cho tứ giác ABCD có $\widehat{A}=70^{\cir

Question

Cơ bản

Chọn câu trả lời đúng Cho tứ giác ABCD có $\widehat{A}=70^{\circ},\widehat{B}=100^{\circ},\widehat{C}-\widehat{D}=90^{\circ}$ thì:

4 câu trả lời

Answer 1

$\widehat{C}=120^{\circ},\widehat{D}=30^{\circ}$

Answer 2

$\widehat{C}=140^{\circ},\widehat{D}=50^{\circ}$

Answer 3

$\widehat{C}=130^{\circ},\widehat{D}=40^{\circ}$

Answer 4

$\widehat{C}=150^{\circ},\widehat{D}=60^{\circ}$