Question

A=8cm, b=3|3cm , У=120°

Answer 1

Ответ:

Дано:

а=8см.

b=3см.

P-?.

S-?.

Решение:

P=2(a+b);под.ч.

P=2(8+3)=2*11=22см.

S=a*b;под.ч.

S=8*3=24см.

Ответ:P=22cm; S=24cm.

Answer 2

Ответ:

Лучший ответ пж буду рада

Объяснение:

Буду всем помогать)

Answer 3

It seems like you've provided some values for a triangle, including side lengths and an angle. To work with these values, we can use the Law of Sines and the Law of Cosines to solve for other angles and side lengths. Let's assume that A, B, and C are the angles of the triangle, and a, b, and c are the respective side lengths opposite those angles.

Given values: A = 8 cm b = 3√3 cm C = 120°

We can start by finding angle B using the Law of Sines, which relates the side lengths to the sines of the angles:

sin(A)/a = sin(B)/b

We know A, b, and a, so we can solve for sin(B):

sin(B) = (sin(A) * b) / a sin(B) = (sin(8°) * 3√3 cm) / 8 cm

Now, calculate sin(B):

sin(B) ≈ (0.1392 * 3√3) / 8 ≈ 0.0529√3

To find angle B, take the arcsine (inverse sine) of this value:

B ≈ arcsin(0.0529√3) ≈ 3.03°

Now that we have angles A and B, we can find angle C using the fact that the sum of the angles in a triangle is always 180°:

C = 180° - A - B C = 180° - 8° - 3.03° C ≈ 168.97°

Now that we have all three angles, we can use the Law of Sines again to find side length c:

sin(A)/a = sin(C)/c

We know A, C, and a, so we can solve for c:

sin(C) = (sin(A) * c) / a

c = (sin(A) * a) / sin(C) c = (sin(8°) * 8 cm) / sin(168.97°)

Now, calculate c:

c ≈ (0.1392 * 8) / 0.0294 ≈ 377.36 cm

So, side length c is approximately 377.36 cm. To summarize:

A ≈ 8° B ≈ 3.03° C ≈ 168.97° a ≈ 8 cm b ≈ 3√3 cm c ≈ 377.36 cm