एक दी हुई किरण के प्रारंभिक बिन्दु पर 45° के कोण की रचना कीजिये।
Construct an angle of 45° at the initial point of a given ray.
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Step-by-step explanation:
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Ex 11.1, 2
Construct an angle of 45° at the initial point of a given ray and justify
the construction.
Steps of construction
1. Draw a ray OA.
2. Taking O as center and any radius,
draw an arc cutting OA at B.
B
A
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