Đề thi HK1 Toán 7 - Sở GD&ĐT Ninh Bình - Năm 2017...

A \(\angle B + \angle C > {90^0}\)

B \(\angle B + \angle C < {90^0}\)

C \(\angle B + \angle C = {90^0}\)

D \(\angle B + \angle C = {180^0}\)

A 61⁰       

B 129⁰

C 119⁰

D 29⁰

A a\(\parallel \)b.

B b\(\parallel \)c.

C \(a \bot b\).

D \(c \bot b\).

A \(\begin{array}{l}a)\,\frac{{14}}{{15}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,b)\,\,\frac{{ - 1}}{{10}}\\c)\,\, - 8\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,d)\,\,\frac{{ - 14}}{5}\end{array}\)

B \(\begin{array}{l}a)\,\frac{{16}}{{15}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,b)\,\,\frac{1}{{10}}\\c)\,\, - 8\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,d)\,\,\frac{{ - 14}}{5}\end{array}\)

C \(\begin{array}{l}a)\,\frac{{14}}{{15}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,b)\,\,\frac{{ - 1}}{{10}}\\c)\,\, - 4\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,d)\,\,\frac{{16}}{5}\end{array}\)

D \(\begin{array}{l}a)\,\frac{{16}}{{15}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,b)\,\,\frac{1}{{10}}\\c)\,\, - 4\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,d)\,\,\frac{{16}}{5}\end{array}\)

A a)  x = \(\frac{{ - 3}}{4}\).

b)  x = 1 hoặc x = \( - 2\).

B a)  x = \(\frac{{ - 2}}{3}\).

b)  x = 1 hoặc x = \( - 2\).

C a)  x = \(\frac{{ - 3}}{4}\).

b)  x = \( - 1\)  hoặc x = 2.

D a)  x = \(\frac{{ - 2}}{3}\).

b)  x = \( - 1\) hoặc x = 2.