(i) In A ABC Seg AD Seg BC
angle C = 45°, BD = 5 and AC = 8 under root 2
then find AD and BC
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Answered by
88
Answer:
AD = 8 and BC = 13
Step-by-step explanation:
given AD is perpendicular to BC
=> ∠D = 90°
now consider Δle ADC
here ∠D is 90° and ∠C is 45°
sum of angles equals to 180° so, ∠A = 45°
when two angles are equal it is a isosceles triangle in which two sides are also equal
so AD = DC
hypotenuse theorem, AC² = DC² + AD²
=> (8√2)² = 2DC²
=> 128/2 = DC²
=> DC = 8 =AD
so AD = 8 then
BC = BD + DC
=> BC = 13
Answered by
14
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