Question

if one angle of a parallelogram is 90 degree, what are the measures of the other three angles what other name will you give to this parallelogram​

Answer 1

Dear student,

$$\begin{gathered} Asweknowthatinaparalle\log ramoppositesangleareequal \\ Therefore,therewillbetwoangles90°each \\ Andlettheothertwoequaloppositesanglebex \\ \Rightarrow 90°+x+90°+x=360(sumof\angle sof\parallel gm) \\ \Rightarrow 180°+2x=360° \\ \Rightarrow 2x=360°-180° \\ \Rightarrow 2x=180° \\ \Rightarrow x=\frac{180°}{2}=90° \\ Thus,theotherthreeangleare90°each. \\ Theothernamecanbegiventothisparalle\log ramisrec\tan gle. \end{gathered}$$
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