Question

please solve fast
with solutions ​

Answer 1

Answer:

Hey mate!!!

your answer:

Let AC = x

By Pythagoras theorem

$x = \sqrt{ {13}^{2} - {12}^{2} }$

$x = \sqrt{169 - 144}$

$x = \sqrt{25} = 5$

Perimeter

$13 + 5 + 12 = 30$

Area

$\frac{1}{2} \times 12 \times 5$

$6 \times 5$

$30$

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Answer 2

Step-by-step explanation:

(Ac)² = 13² - 12² ( Pythagoras theorem)

AC² = 169 - 144

AC² = 25

AC = 5 cm.

Perimeter of a triangle = sum of all sides.

= 5 + 13 + 12 = 30 cm.

Area of a triangle = 1/2bh

1/2 × 12 × 5

= 30cm².