Question

choose the correct alternative​

Answer 1

Step-by-step explanation:✓108:✓144:✓36

58:72:18

16:26:6

8:13:3

8+13+3 is 24

180÷24=7.5

A=13×7.5=97.5------------.

Answer 2

Answer:

Step-by-step explanation:

AB=6√3 cm ,AC=12 cm and BC=6 cm

We observe

AB²+BC²=(6√3)²+6²

=108+36

=144

AB²+BC²=144=12²=AC²

Thus ABC is aright triangle with ∠B=90°

$\tan A= \frac{BC}{AB} =\frac{6}{6\sqrt{3} } \\\\\tan A = \frac{1}{\sqrt{3} } =\tan 30^{\circ}\\\\\bf Thus \ \angle A=30^{\circ}$