Question

Ncert class-7 maths try these solutions page no. 145 Q3 and 4

Answer 1

Answer:

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Answer 2

ΔABD ≅ ΔACD

Step-by-step explanation:

in ΔABD & ΔACD

AB = AC = 10

AD = AD  given

∠ADB = ∠ADC = 90°

BD² = AB² - AD² = 10² - AD²

CD² = AC² - AD² = 10² - AD²

=> BD² = CD²

=> BD = CD

as all sided are Equal of triangle

=> ΔABD ≅ ΔACD

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