Question

ABC is a triangle in which AB = AC = 4 cm
and ZA = 90°. Calculate :
(i) the area of A ABC,
(ii) the length of perpendicular from A to BC.

please answer faast........it's urgent...........​

Answer 1

Answer:

qoution is wrong can say the right one

Answer 2

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(i.) Area of the triangle is given by

$A = \frac{1}{2} \times ab \times ac$

$= \frac{1}{2} \times 4 \times 4$

$= 8 \: {cm}^{2}$

(ii.) Again area of the triangle

$A = \frac{1}{2} \times bc \times height$

$8 = \frac{1}{2} \times \sqrt{4 {}^{2} + 4 {}^{2} } \times height$

$height = 2.83 \: cm$

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