Lines and Angles - Worksheets

CBSE Worksheet-01
CLASS – V Mathematics –Complementary Angles

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Identify the missing angle in each set of complementary angles.

1.	2.
3.	4.
5.	6.
7.	8.
9.	10.
11.	12.

CBSE Worksheet-01
CLASS – V Mathematics –Complementary Angles
Answers

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1.∠CAD=68o∠A=90o(Right Angle)∠DAB=900−68o=22o$$\begin{gathered} 1.\mathrm{\angle }CAD={68}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }DAB={90}^0-{68}^o={22}^o \end{gathered}$$	2.∠BAD=53o∠A=90o(Right Angle)∠CAD=90o−53o=37o$$\begin{gathered} 2.\mathrm{\angle }BAD={53}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }CAD={90}^o-{53}^o={37}^o \end{gathered}$$
3.∠BAD=40o∠A=90o(Right Angle)∠CAD=90o−40o=50o$$\begin{gathered} 3.\mathrm{\angle }BAD={40}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }CAD={90}^o-{40}^o={50}^o \end{gathered}$$	4.∠CAD=63o∠A=90o(Right Angle)∠DAB=90o−63o=27o$$\begin{gathered} 4.\mathrm{\angle }CAD={63}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }DAB={90}^o-{63}^o={27}^o \end{gathered}$$
5.∠BAD=47o∠A=90o(Right Angle)∠CAD=90o−47o=43o$$\begin{gathered} 5.\mathrm{\angle }BAD={47}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }CAD={90}^o-{47}^o={43}^o \end{gathered}$$	6.∠BAD=17o∠A=90o(Right Angle)∠CAD=90o−17o=73o$$\begin{gathered} 6.\mathrm{\angle }BAD={17}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }CAD={90}^o-{17}^o={73}^o \end{gathered}$$
7.∠CAD=33o∠A=90o(Right Angle)∠DAB=90o−33o=57o$$\begin{gathered} 7.\mathrm{\angle }CAD={33}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }DAB={90}^o-{33}^o={57}^o \end{gathered}$$	8.∠CAD=52o∠A=90o(Right Angle)∠DAB=90o−52o=38o$$\begin{gathered} 8.\mathrm{\angle }CAD={52}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }DAB={90}^o-{52}^o={38}^o \end{gathered}$$
9.∠BAD=21o∠A=90o(Right Angle)∠CAD=90o−21o=69o$$\begin{gathered} 9.\mathrm{\angle }BAD={21}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }CAD={90}^o-{21}^o={69}^o \end{gathered}$$	10.∠CAD=75o∠A=90o(Right Angle)∠BAD=90o−75o=15o$$\begin{gathered} 10.\mathrm{\angle }CAD={75}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }BAD={90}^o-{75}^o={15}^o \end{gathered}$$
11.∠BAD=45o∠A=90o(Right Angle)∠CAD=90o−45o=45o$$\begin{gathered} 11.\mathrm{\angle }BAD={45}^o \\ \mathrm{\angle }A={90}^o(RightAngle) \\ \mathrm{\angle }CAD={90}^o-{45}^o={45}^o \end{gathered}$$	12.∠BAD=54o∠A=90o(Right Angle)∠CAD=90o−54o=36o