Question

12. Find the size of each angle marked with a letter in Fig. 9.73. 50° (1) 40° 60° Fig. 9.73​

Answer 1

Easy Question

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$\large \tt \mapsto \: s = 40 \degree$

• Corresponding angles

$\\ \large \tt \mapsto \: t = 60 \degree$

• Corresponding angles

$\\ \large \tt \: 40 \degree + 60 \degree = 100 \degree$

• Reflex angle = 360° - x

Where x is the opposite angle to Reflex angle

$\\ \large \tt \leadsto \: r = 360 \degree - 100 \degree \\ \\ \large \sf \therefore \: r = 260 \degree$

Here are the answers :

• s = 40°
• t = 60°
• r = 260°

$\\ \large \sf \: hope \: \: it \: \: helps : )$